Worked for at least 6 months...
346185
While this worked great upon opening - the display went darker and darker as use continued.  Regardless of new battery or not.  Now, a year later, it doesn't work at all.  I didn't overly use this tuner, and I displeased with its lack on longevity.
2301748
It worked well for almost 5 months....then just stopped working. Five months is just not long enough.
3940603
Was working great for about the first 6 months. Now it just flashes an error light. Also one of the battery alligator clips came off. It's possible that was my fault, giving the benefit of doubt. I was able to reattach.
3912186
It worked great for six months. Just stayed quiet in the corner doing its thing. But a few days about it started dropping connections and not reconnecting at all.
3047613
Worked great for about six months. Now the switch will not work and needs to be replaced.  I hope I can find some manufacturer that makes one that works at some price.
2640324
It worked fine for about 6 months, after that it just stopped working and I don't know how to fix it.
4666146
It stopped working.  I was hoping it would last longer but no luck 6 months i should have bought something cheap. Live and learn....
3013130
Worked well while it did. Didn't have any problems with it for 6 months. After a while, it started being selective on where it wanted to charge. Some outlets it wouldn't charge at all, but other outlets it would. Those outlets would be perfectly functional so it leads me to believe there is something wrong with the product. About 8 months after purchasing, the product has gone kaput and doesn't work at all anymore.
517286
Quit working after about 6 months. Just realized its been sitting on my shelf non-functioning for a couple months. It began making a hissing sound and displays multiple error messages. I had left it running in my truck in loop mode. no real reason to remove it unless there was an incident I needed to review. Had I not removed it to clean the window I would never have realized it wasn't even working.
4886401
Worked for about six months.  When it actually did work it worked relatively well.  Reservoir is too small,  could not complete our tile floors (small area).
2065863
Worked for about 6 months and then the transmitter stopped powering up. Descent when it worked...Searching for something that will last and has a bit more quality!
3220495
I bought this in July 2010.  It was very easy to set up and was working fine.  Today, after 6 months, all of sudden it just doesn't work.  The power indicator was still on but all the devices were plugged in didn't work first.  I tried to unplug some devices then all of sudden the power indicator also turned off.

It's not a reliable product.  Suggest you to consider other options.
3207273
After 6 months, only 1 is still working. Not acceptable!
3042305
Is it supposed to last 6 months? Worked great in the beginning.
3824936
This is an ok item that worked for about 6 months before it died.  Was it my kid or the cable?  I don't know.  I have gotten a new one to check it out though.  I am not 100 percent sure of either possibility.  If it was the kid I will revise my review, if it was the cable the review stands.
2410477
These provided a little difficulty getting them to work correctly-turned out a couple Ethernet cables weren't compatible. Once I found one that was, they worked great! ...for about 6 months. Now the receiver seems to not work as the status light doesnt come on anymore, but I cant be sure. I guess this gives me the chance to upgrade to a single to multiple...
3925994
Worked very well when I had it, however as of today after 6 months, it just doesn't work anymore. 1/4 lights work on the switches, nothing in the slots however work.

What I've done with it: Really only connect my Mechanical Keyboard to it, sometimes a gamecube adapter, had 0 problems. After 2 days of plugging in my phone(only with keyboard otherwise) it started to become weird and wonky. All I have to say, is cheap, did its job for a small bit, fragile.