No I can not say that the bass response as I wish, connected to a XPERIA Z equalizer with even lower cleat, it does not do ... nothing to do, to make good bass must the box , no small thing. The rest of the sound spectrum is not bad after next power even volume up can not ask more of a small thing.
In addition, as so often, Bluetooth does not fix things ...
For the rest, it's small, round, cute, design, it sounds solid, well finished. Charging is very fast, with a standard connector (so not the iPhone), the size obviously allows to carry it everywhere. The pair with the phone is very easy.