I recently bought wonderchef online onseeing advertisements in foodfood channel. It works amazingly. It has 3 jars , small one middle one and the juicer. Beleive me , the small jar works very good for making fine powders even in very little quantity and the juicer is simply wow.
I should say, it much better than the normal mixer grinders in the market. I always found difficult to make spice powders fresh in the normal mixies . but its amazing!