I was a substitute with a good battery and a "update" software and hardware.
The Acer e700 trio with its battery of 3500 MA (against 1500 on my previous) allows me heavy use (fluid surfing 3g + 10 mo, phone, sms, and greedy but fluid games - all went very smoothly and for hours) ...
and although he would like two days without recharging !!! (And is still the battery)
when we know that autonomy is one of the most wanted criteria for user, well this one is perfect for me ...
no stress to watch out all the time, while it remains on and not likely to dump the ... frankly cool :)
For the remaining elements, it is perfectly balanced:
fluid - 4 cores at 1.3GHz + 2 GB of RAM 4.4.2 android + = no micro lag
16GB memory included without transferring bug with a sd card 16gb and more
Fast and reliable GPS
good quality sound with headphones supplied good quality in-ear
Screen 5 inch super quality (color, brightness and definition nickel)
form (htc like?) and texture of the perfect shell (no fingerprints, no slides)
I can not find fault with this phone has a really fair price.
I highly recommend.