TBH if you want a do it all top notch device you not going to get it fot £200 google are the guilty party to most of this as the release unpolished firmware but luckily most devices have some devlopement available that fixes it. for all its faults i would not go back to iOS
these allwinner cpu tablets are really pretty good(if you get a good one) if you look at the posts on forum you must think how many people are happy and have not searched for a problem solving forum!