Given that this speaker costs £34, I'm happy with it. It's a nice compact size that gives pretty good quality sound considering. Obviously, you can't expect audiophile sound quality at this price/size.
I was originally looking for something small to take with me & the Mrs. in to hospital when she has our baby (so maybe not hear it over the screams!). I was considering the logitech mini boombox & the Creative D80 when I saw the spec. of this on What Hi-Fi website, and thought I'd give this a try instead.
I haven't given it a thorough test yet, but connecting it to my Samsung SIII and listening to music via Spotify I'm pleased with my choice. Can't comment on battery life or voice call functionality yet. It paired easily with my phone too.
As stated by a previous reviewer, this can be charged using a standard 5v mobile phone charger that takes a USB connection.
One negative is the volume controls are a bit fiddly. The buttons are combined with the next/back buttons. A quick press will go back/forward one track. Press and hold will alter the volume, but this is not a very smooth increase/decrease. It will jump up/down in big steps. More often than not you will take your finger off too soon and end up skipping tracks instead. I guess your better off setting the device at a reasonable level and use your phones master volume control instead.
The other minor negatives (that can always be expected with small devices of this nature) is that the sound will begin to distort above 85% of maximum volume and that bass levels are not going to shake the furniture around the room.
All in all, definitely worth a 4 Stars!