I have been using this Lenovo Vibe K5 note now from past 4 months. I would say that I have tried many smart phones but this one is really amazing among all which I have used till now. Its fast because of 3gb ram. Its 5.5 inch screen give such an awesome experience of playing any game or watching movie. Add on to that if you have ANTVR glasses along with it. That VR mode gives you such a phenomenal experience of 360 Degree videos. It gives you experience of life time. Camera quality of front and back both are really awesome though in terms of effects it lacks a little but interm of quality of picture its way beyond among all the smart phones of same price range.
In all for me this phone is Must buy and its complete value for your money.