Like the fact it can be charged
348882
I use this for my cat to chase. Batteries died in other cheap laser pointers. Was gonna be costly to keep replacing. Like the fact it can be charged.
2622968
While it would be nice if there was some sort of Base with it, I can't fault the way it charges which is excellent. No problems whatsoever with it, and I can make a base
4952098
This is really convenient. I often have my phone in a wallet, and I can drop it in the wallet on this charger and it will charge. You do need to make sure that you're placing the back of the phone on the charger, not the front, and that you don't have credit cards between the phone and charger, but it works just fine. I wish I'd bought a speed charger, but for the price, this is pretty much fine.
3994417
The price was right and it stays charged a long time.
2638870
There are batteries that have more charges, but this one is small and can usually get 2-3 charges out of it. It's very handy to have when you need an extra boost and you failed to charge your phone or you know you're going to be using it all day. It charges my iphone fairly quickly, but also it's small enough that I can put it in my pocket or purse and keep charging on the go.
2546951
it works just as expected.  I wanted a separate charge I could leave at my countertop outlet 'charging station', and this one fills the bill.
1533769
Bought this to help keep my phone charged when I'm selling at craft fairs/festivals (I use the Square reader/app on my phone and need to make sure I've got enough battery to process transactions), and it does just that. I like that you can charge more than one device at the same time, and that it holds a long charge, but I wish I could tell how much charge was left. The light will turn on if there's a charge, and if it's dead....well then it doesn't light up.

I bring it with me whenever I go on trips or if I know I'll be away for an extended period of time. It's a nice little backup battery for all kinds of devices.
959377
With its length, the cord can be long enough to use for charging anywhere.
1654373
I charged this backup for longer than required, but it has handy blue lights to tell you how much charge you have.  After charging, I used it as my exclusive iPhone charger (that is, I didn't plug the iPhone into anything else) for four full charges (from less than 20% to full) and it still holds enough charge to do one more charge.  Next, I'll use it for my wife's Pre.  The battery lights are handy, since you have a good idea of how much charge is left.  It is light, but a little large.  I have another iPhone charger from Sharper Image that is much smaller, but it only charges the phone twice before needing to be plugged in.

As for use, it couldn't be easier.  There is a micro USB port labeled for input, and another on the other side labeled for output.  About the only thing that might be a problem is that it doesn't include charging adapters for iPhone/iPad/iPod.  You will need your own cable to plug into the USB port, and that can run you an extra $15.  Still, this is well worth it!
2933823
I purchased this charger because I thought it was neat. I like the fact that the phone stands up and you can see who is calling, instead of it laying flat on the counter.  I think this is a good purchase, and it doesn't cost that much.
3352531
Initially it wouldn't charge, but Customer service sent new cords and it has now been consistently charging!  Works well.
It is heavy.  And I dropped it once and the housing fell apart, so it feels like a trade off between extra charge and a drop resistant secure case.  but overall, it is good!
3724971
A great convenience to have to be able to use this and charge my flashlight in my vehicle on long trips.
319239
it all works actually. if only i had more things to charge to use it to its full potential
3385352
It does a good job at maintaining a "charged" battery.
4538359
Have not used this but i have used car charges before and i makes it very nice to be able to re-charge while driving and it arrived right on time.
293177
+ The case battery is strong and is able to charge my phone a few times (2-4, depending on how low I let it go down) before I have to recharge the case battery.
+ I have not experienced any of the other issues that have been written about - my charging button is fine. The connector pin is fine. It hasn't broken when I've dropped it.
- It does make the whole phone heavier, but I don't mind it so much.
- The little stand to help the phone stand up sideways for video watching doesn't work. As stated in other reviews, it's just too short and the case weight is heavier than the leverage of the stand.
- It is tough to start the phone to slide out when you want to (I often take my phone out and charge the case at my desk while I carry my phone without a case).
- The case has a small top piece that kinda locks the phone into place. Others have mentioned that it has a flimsy bridge that breaks and mine is broken, although I am still able to use it.  It clearly is an issue that the company knows about because my case came with two top pieces.

I've had the charger case for two months now and I've enjoyed having it.  I do wonder if the iPhone charger case (which was twice the price) has the issues.
3601651
All that I expected, nice that it charges on it's side as well as upright.