Works good, except with Satelite.
592456
Works as advertised. Love that it records in high def. Unfortunately, won't record with ANY DirecTV channels. Seems they are now all scrambled. (My old Panasonic DVR worked fine.) Like that it applies show titles automatically.
248355
Does everything it should well but receive off-air signals.  I read the reviews too, so I was aware of this problem.  Since I have a Satelite(XM)receiver hooked to it, I bought it anyway, due to the price.  Off-air reception is as reported.  Everything else works perfectly and is simple to set up.  Price was $400 lower than at Best Buy.
3108196
Antenna works well and gives a good picture. My TV tuner seems to get a different amount of channels on different days. Some days it is missing channels and some days it gets duplicates of the same channel, where one won't come through correctly. I do not know if it is the TV tuner or the antenna. I had two major problems with the antenna. The first is that I was running it to a splitter in a common area then going out to two different TVs in different rooms. I had to buy an additional HD signal amplifier to get the appropriate channels on both TV sets. The second problem I had is that the antenna was located in a room with LED flood lights. Whenever I turned on the lights the signal would get locked up'd and pixelated. I think the antenna wire and or the antenna needs to have better insulation from external interference. I had to replace light bulbs with CFLs to get working signal to TV's. I had an additional minor problem with the provided adhesive tab not sticking to the antenna as specified by the directions. It stuck to the glass fine just not the antenna. The adhesive only lasted a day. I ended up just letting rest in the window sill.
4932600
Works like a charm.  This unit is small and works well. There was plenty of antenna wire.

The first time the tech hooked it up, for some reason the radio didn't recognize the box.  But after a reattempt with me watching over his shoulder it worked flawlessly.  Maybe there's some fussiness there about the order of connection or the unit needs to see the sky for a while.

Every once in a while with a long song name the radio display shows another long song name in its place.  The same long name it first saw seems to be stuck in there.  I'm not sure if that's the Sirius unit or the radio.  Probably a reset will clear it out until whatever happened happens again and another name gets stuck.  Wish I could upgrade firmware all around.
4130578
These work well only when there's a clear view of the southern sky. We were placed in shaded trailer spots several times where no satellite can receive a signal. Even branches without leaves will mask the signal.
4604967
There reception is good and it works reliably, but the integrated is a bit sluggish. (Although there may be software updates. I have not checked).
3099731
For the money and size, the unit is a good choice.  The only issue - even with a better antenna, still has some issues with reception.
3369636
so far very good product. easy to hook up. works well with my sattelite system. price was low enough, so i bought the extended warranty. would recomm.end
2698241
Arrived promptly, works perfectly.  I'm running it on Windows 10 with VisualGPSView.  Tested against Google Earth. agreement is typically within 1 or 2 times 1/10^5 degree or 1 to 2 meters, quite good enough for my application.  The price is good.  The build- quality appears to be good.

I bought this receiver to replace a GlobalSat ND-105C Micro USB GPS Receiver, which is badly made and does not work.

Update, May 21: the results of 1 to 2 meters were for half-hour or so averages, but appear not to be repeatable.  Later runs show more variance.  I'm working with the NMEA data and will post results when I get them.
3810502
The GPS works fine but the fine adjustment required to correct the speed does not work as it should. It will increase or decrease as suggested but will not hold the speed set. In fairness, I have contacted the seller who is looking  in to this problem with the manufacturer.
3132042
Product worked great, but on a trip to Spain the USB connection on the unit broke, rendering the unit inoperable.  I was not able to geotag most of the photos taken during the trip.  On the positive side, it connects to satellites very fast.
4143130
So far, fairly impressed with this receiver.  Far better than the buggy Openbox S10 it replaced.  It does not have an Americas satellite database, so be prepared to enter your own.  The one challenge I'm still faced with is, where to set the local Lat/Lon for the USALS to function.  Once I figure that out I'd rate it 5 stars, but since the manual doesn't discuss it, nor have I found it in the menu tree, I got to take off a star.

Followup:  I finally did find the USALS settings, but it apparently won't work in Northern hemisphere.  The motor runs in the wrong direction to the limit.  I got to see if my motor can be reversed for proper function.  Otherwise you have to use DiSEqC 1.2
3106222
This radio works as advertised. However, my experience has been that the reception is poor. I am comparing this to a Dual radio that was removed and returned because the station pre-sets were lost when the radio was powered off. This radio holds the pre-sets fine but, in the same locations it has noticeable reception differences on weaker or marginal stations. The sound quality seems good and it performs well in other areas. I have not used the USB or SD card slot as yet.
2854277
The Reciever works well. My only complaint is when I change Antenna directions I have to reset the channels. The previous box I had once you set the various channels you could change the antenna direction and the channels from that direction would already be set.
1268568
I love it, and for the Satellite radio it picks up fine, but for local stations it does have slight problems... It's still better than that tall ugly one that comes on the JK...
1140934
Happy with this GPS for the most part. I wish the speaker system had an adjustment roller as my old street pilot has. At times its hard to hear over people talking in the car. Sometimes takes too long to connect to satellite, cant tell if its searching all this time or is stuck, so after a few minutes I switch it off and on and behold we have connection. Also... Garmin should supply a usb cable, how else would you upgrade the maps. In all it gets me there.
4757418
Tested working and auto-detected by Garmin DriveAssist 50 NA LMT GPS - but one must first update software as below, else trouble.

First, the HD antennas:

The Garmin GTM 60 HD Digital Traffic Receiver
<a data-hook="product-link-linked" class="a-link-normal" href="/Garmin-GTM-60-HD-Digital-Traffic-Receiver/dp/B005NJJWVG/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Garmin GTM 60 HD Digital Traffic Receiver</a>
in urban areas (see map of reception at coverage.here.com) receives far more traffic data than does the slow analog traffic receiver that ships with the Garmin DriveAssist 50 NA LMT GPS.  As I understand it the analog signal is on a short loop, so that the analog receiver will never get more than a fraction of the HD traffic data, no matter how long it listens.  There is no charge for HD traffic updates beyond the purchase price of the antenna.

Consider too, for not much extra money, early warning of trouble from a slightly greater range by adding the Antenna Extension Cable
<a data-hook="product-link-linked" class="a-link-normal" href="/Garmin-Antenna-Extension-Cable-with-Suction-Cups-for-GTM-Traffic-Receivers/dp/B003YCLB0E/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Garmin Antenna Extension Cable with Suction Cups for GTM Traffic Receivers</a>
which plugs into the Garmin GTM 60 HD Digital Traffic Receiver about midway along the cord in the small square enlargement box that the picture on the Amazon page for the HD Receiver does not show.

Procedure to auto-detect the Garmin GTM 60 HD Digital Traffic Receiver:

Important: As of Dec. 2016, one must first update the software on the Garmin DriveAssist 50 NA LMT GPS.

(1) On a computer, download and install Garmin Express.
(2) Plug the Garmin DriveAssist 50 NA LMT GPS into the computer, run Garmin Express, and follow the simple prompts to update the software (maps too if desired).
(3) Plug in the Garmin GTM 60 HD Digital Traffic Receiver, which is then auto-detected with no user input required (one may have to be within range of the HD signal for auto-detection), and HD Traffic when within range will flow into the GPS.  Auto-detection seems to rerun every minute or so while the GPS is in operation.
(4) Verify that HD traffic is being received by:
(4a) Going within range of an HD traffic signal.
(4b) GPS main screen -> At lower right Settings -> Scroll down to Traffic.
(4c) See on top line Traffic Compatible device checkbox is checked.
(4d) Click on Current Provider, which will show HD Traffic being received, but again, only if at this moment one is within range of an HD traffic signal.

Before this new software update, which came on-line to download sometime between approximately Oct. 1 and Dec. 1, 2016 the old GPS software (pre-Oct. 1) could recognize and use the HD Traffic Receiver only after manual intervention in the GPS user interface.

Touch ups:

I suggest walking through every menu on the device to set it up to one's preference.  Some of the defaults are questionable.  One may prefer Settings -> Traffic -> Optimize Route Automatic.  One may prefer to turn off most Alerts (Settings -> Map&Vehicle -> Audible Driver Alerts) leaving only the ones critical to personal action, else the GPS beeps Alerts so often for reasons  one does not care about that one may tend to tune it out - the crying wolf problem.

Also, I replaced the supplied camera 4 GB card, which seems to retain only the most recent 1/2 hour of video at high-resolution, by a 32 GB card, the maximum capacity in the specs for this GPS, for $20, retaining about 6 hours of video:
<a data-hook="product-link-linked" class="a-link-normal" href="/32-GB-Micro-SD-Card-for-Smart-Phones-Samsung-Galaxy-S7-S5-S4-LG-Motorola-Sony-BLU-Moto-HTC-and-Tablets-SUPER-FAST-SPEED-U3-up-to-95MB-s-Class-10-MicroSDXC-flash-memory-by-POLAROID/dp/B01H4AE1TE/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">32 GB Micro SD Card for Smart Phones (Samsung Galaxy S7,S5,S4, LG, Motorola, Sony, BLU, Moto, HTC) and Tablets - SUPER FAST SPEED U3 up to 95MB/s Class 10 MicroSDXC flash memory by POLAROID</a>