I am using this micromax x551 mobile from 6 months .the design of this mobile is very bad and the keypad is very hard.
the weight is also more and the sound quality is very bad it produces more sound.this mobile is not slim.the display quality is worst after using this mobile for 10 days the mobile unexpectedly felt down from bed thats it the mobile display is not working this is the worst experience that I had and again I spent 250 rupees for new display.so the quality of the mobile is very bad.