Works great. It does get hot depending on the SSD ...
346418
Works great. It does get hot depending on the SSD card you put in so make sure it is not under anything so it stays cool to cool your SSD card.
3253004
Haven't had any issues with it.  I'm using a traditional hard drive (not SSD), I haven't noticed any heating issues.  I only use it now and then (music, photos, backup)
4592796
I've had this drive for two years now, and it's done great! It has fit all of my needs.

It does have two minor downsides though. It gets uncomfortably hot when doing large transfers. Additionally, the USB-C port has become bent over time and this makes it hard to "push out". That now requires some wiggling.
2818467
Does its job well.  Only concern is dependent on the HDD you put in it.  Cooling seems like it could be a problem if that HDD has to be used a lot.  but if it is an archival HDD or sporadic use HDD, this shouldn't be an issue at all.  I have had it now for over a month and the HDD in it (its mostly used for archives of videos and other seldom used files or backup purposes), has stayed cool.  transfer speeds are unaffected, which was my other concern, tho logically it shouldn't have been a concern.
3383234
It works just fine. USB 2.0 is a little slow but it's not to bad. I was worried about the heat but it doesn't get to hot.
4469724
Does get rather warm, I wouldn't say it gets hot though. I transferred about 8gb all at once to it when I first got it from my SSD in my computer and the transfer speed averaged 140mb/s according to windows 7 using USB 3.0 port. Going from this device to the SSD was only about 15mb/s though, so read is significantly slower than write speed. I have a PNY drive of this same size that is usb 3.0, the nicer thing about that drive is that it includes a lanyard style keychain ring, of which this includes nothing, It does have a hole in it for something, but does not include any way of putting it on a key chain. The hole in the device is too small to put directly on a ring. The drive itself is rather small and I feel as if im going to loose it otherwise, but that is what I wanted .. something and portable.
3599253
Reader is pretty fast, but runs quite warm. I can't leave it in the computer for very long before it becomes uncomfortable to touch. Probably okay if you are going to plug it in, read/write data then remove it immediately. I wouldn't recommend leaving it in the computer for long periods (which I frequently do with other USB flash memory products).

EDIT (2016/11/04)
I've been using this for a few months now, and while I'm still not comfortable with how warm it gets during use, it hasn't caused any problems so far. Note that I do not leave it in the computer. I just plug it in long enough to transfer the data I need then remove it.

I must say the speed of this thing is impressive. I own a few USB 3.0 card readers, and this is the fastest. Of course you'll need a very fast Micro SD card to see any difference. It won't magically make a slow card fast.

I'm tempted to raise my rating to 4 stars, but I'm still unhappy with how hot it runs. I also don't like that it doesn't have an activity indicator LED. All removable storage devices should have that (in my opinion).
3974615
Gets REALLY hot sometimes, but it works well. Smaller than I anticipated but there's nothing wrong with that. The power light is VERY bright. No complaints, as it works very very well.
64622
Works perfectly. I purchased a sandisk 128 gb usb3  that would get to hot and disconnect. This drive does not get hot.
1993133
This thing works great! I just got it and paired it with a new cheap PNY CS1311 240GB SSD.

The first thing I did was format my SSD for exFAT. Then I copied a 2GB .ISO file from my main Samsung 840 EVO SSD to this drive on my USB 3.0 port. I didn't count the seconds, but it was about 5 seconds to copy over the 2GB file from one SSD to this drive. Let's just hope it keeps up this speed.
3256752
I'm using it with a 1GB SSD and I have had no issues after using it for a week.  I have it connected to a USB 3.0 port on my computer and it seems to work just as fast as when it was in the computer.
4779445
Works great!
It gets super hot, but I feel like that applies to anything I plug into my macbook pro when I'm working in Photoshop and Premiere. It's easy to get in and out of the computer, and has a subtle light that blinks to let you know when it's in use.
3274867
Works as expected. I bought this to transfer files from one PC to another and for backups, the Drive does get really hot when uploading or downloading a couple terabytes of information. I've been using the same 2 WD Green 3TB drives in it for almost 2 years now and haven't had a problem yet.
3838344
This things is seriously FAST. I bought this to replace my 32GB Samsung mSATA SSD that came with my laptop. While is was an SSD, that 32GB was *only* getting around 290MB/s read and write. This 850 Evo is getting around 520MB/s on the read and write. It makes everyday tasks lightning fast and my laptop turns on incredibly fast. Highly recommend it.
628758
I have this permanently connected to a usb 3.0 hub attachd to a 15 hour a day computer, gets very hot!! But is still working fine and is pretty fast at copying files -
1012604
Works perfectly! I made it an external SSD by buying an enclosure and had no issues installing it.
Totally recommend this weather you need a internal or external SSD.
2513107
Great flash drive! super portable (although I recommend attaching a little strip so that you don't loose it; this thing is small!). Only concern is that it gets pretty hot during intensive read/write period (especially when handling big amounts of very small files, which is when the control chips work the hardest). Will see if it fails due to heat