Just bought one a couple of days ago and I'm still hesitating to send it back or not. My pros to keep it:
1. I am happy with the dual-sim part, it seems to work well. I only tried once tho to have two calls at the same time (the 2nd went busy)
2. The touchscreen is fine for me, fast enough. I dont expect more from a phone in sunshine - as for the visibility. It's not perfect (like samsung galaxy SII), but very few are.
On the contrary:
1. Battery life is crap. Even without having the wifi or bloototh on, it only works 24 hrs.
2. recharging takes a lifetime, first it was about 4 hrs!
3. The speaker is more than dissapointing. It is literally useless. I am a mum with two kids so only being on the phone sitting on a sofa is a luxury to me - I want to use my phone to be able to chat without having to hold it. The speaker and the microphone both seems to be rubbish. Once in every minute it sounds like speaking from under the sea, with chickens in the background :-/ very, very disturbing.