It is too short a timeframe to judge the product - I have been using it for a week or so. But I could resist a review.
The PIC 6.0 looks real sleek and is easy to maintain. I am really amazed by the efficiency of the electric cooktop(this point not really exclusive to prestige brand alone). I have been using it for less than 30 min a day for heating milk/water, making tea etc.
My mother has been using the PIC 1.0 for an year and half without issues and happily too. The purpose of usage has been the same and occasionally to make evening snacks. The average usage time being 60-90 mins a day.
Will update after a while.
Update(6 Dec 2011): working well. No issues so far. Daily use for around 30 mins or so.