YU yuphoria is a well built phone. It does not have many problems, the camera is good and the corning gorilla glass is really smooth and tough.
The overall UI is fine. Its the best phone that you can get in low price Yuphoria is the best phone you can get at this price. It takes a while getting used to the power button being between the two volume rockers, but I think it is convenient to have all the buttons on one side