I am a user of This Asus Zenfone 5 . I have 16gb model. I used this phone sice last 1 year and I am very happy use this phone. It has 8mp primary camera which is quiet better.
It has intel processor which gives the better performance and 2 gb of Ram . It has also many exiting features. It has corning gorilla glass 3. It has many camera modes which gives good Photography experience. Overall it is best phone in this range.