I have the Zenfone 2 (ZE551ML)--the one with the top of the line Atom processor, 4 GB of RAM and 64 GB internal storage. It's an excellent value, with good overall performance, one of the better cameras I've used, and decent battery life. It has a lot of bloatware, but the 64 GB of internal storage makes that less of a problem (and ASUS bloat can actually be pretty useful sometimes).