I used lenovo k3 note and it is worth buying. Lenovo has done a very good job by compiling many great things into a single device while keeping the price too low. The huge 5.5 inch screen enhance the experience of watching online videos.
It has a very good interference, also the design is very sleeky and bold which make the phone look classy. But sometimes the phone hangs if u bulk it with many apps and large data. The camera also works well. Overall lenovo k3 note is a good gizmo to buy.