Regarding as i’m a heavy user of the phone I own a htc one m8 eye in other words the beast.it works seamlessly without any laggyness and its hazzle free. Even though it was an outdated phone with the present market it will be a serious contender in the race its dual camera gives u a perfect focussing shot its chipset is qualcomm 801 which is the best till date without any heating issues( consider it that m8 eye is aluminium it dras some heat) try it luv it!