Ive been using PayTM for about a year now. Its really great. It has made mobile and other recharges, DTH, etc, hassle free. With just a few taps on your cellphone screen the thing gets done. Since recently I have started paying my electriciy bill through it too. Its so fast. The most amazing thing about it is the cashbacks. Like in the other wallets you wont have to wait for the cashbacks because it gets credited the moment your recharge gets done.
I have some products too from it. Most of the the product was defective, but PayTM didnt hesitate in refunding my money. So thats really great about it.