According to me, this being the succeeder of Oneplus One is its biggest con. Oneplus One was a wonderful device which still is superb today in its price range.
Because our expectations were high, 1+ 2 couldn’t meet it.
With Yu Yutopia released in Dec 2015, 1+ 2 relatively fails.
But seeing this as an absolute device, it is a beast in performance, storage, camera is average, call quality and sound is OK. Not a flagship killer at all.