At first samsung phones used to be one of the best but now some companies like MI YU COOLPAD LETV are blowing peoples mind.
These companies offer various feature at low cost these days I think that samsung is getting down as after using their phones for 7-8 months custom UI lags / Hangs but using this phone I think that samsung is improving day by day as it features a good screen and a great processor with powerful android lollipop.