dont take my word on battery, i aint done any full on testing or installed any custom ROMs,. apparently there is something but after reading 15 pages on SD i lost the will to live and gave up looking, WIFI is definately lacking though, the hardware is not as strong as anything else i have here, it drops and slows in places where my other dont, it just is one of those "nearly but not quite", simple things like a drawing game my daughter got where it wont let her draw smoothly, web browsers scrolling is jerky like an 80`s body popper (FF, chrome and stock)
i love the size and form factor, screen is great, good to have a cheap tabe where all angles work

media streaming from PC to movies is nice, but again can grind to halt if too far out of range, the RK tabe did better on this in terms of distance
battery example, on charge all day till 4 oclock - full 100%, daughter come in and draws for 10 mins, watches iplayer web player for 30 mins, another 10 mins or so on basic web browsing looking for washing machine then leavs it, i am using for last 30 mins, screen is 2/3 brightness and battery is at 73% - thats real world usage