I have been using Preethi Platinum MG 153 from last 2 and half months but till now I have not faced any problem and it is working pretty smooth. It has very powerful motor of 550W which can grind almost all the things. It comes with 1 year warranty on motor. However finding service center can be an issue if you are living in interior parts. All round it is a very good product and I would like recommend it.