I bought Lenovo K3 Note from Flipkart around 2 years back. The phone was having good built quality on the front but its back was made of cheap plastic. The worst thing was its touch. Sometimes I was having problems to type through the keyboard. The battery life was good in the beginning but few months later battery backup was not good. Asphalt 8 is not able to run properly in Lenovo k3 note.
It only supports 4G in one slot which caused some problems but it was not such a big issue.
The buttons on the screen are not backlit which makes them hard to find at night.