have used one before. feel quality is cheap, UI is poor, but excellent voice quality for both active SIMs. battery life is also good. averages around 4 days in between charging (under normal use).

functionalities are also limited. to conclude, ok lang if basic call and text and if you use two mobile phones, so that you carry one unit na lang.

samsung is a good alternative.

and one more thing, avoid the Verzio dual sim phones. crappy unit.