some of them are pretty good, i have had the good fortune of having auditioned some and having a few freiends who have them and thus being able to really give them the run down.
You wont find too much info on them on the net, belive me i have tried.
If you are based in delhi then you cana udition them at a couple of places. i am not sure about the rest of the country.
they hold low resale value but are good setup to start with.
