I think if you search here and in trip reports forum you will find several reviews. I think I've written about Kingfisher First in a couple of threads in both spots.

It's the only way to travel within India in my opinion. You will get curb-to-curb service and a private car to the airplane after everyone else has been bussed there. And as GUWonder notes the seats are nice recliners that rival int'l C on many carriers and the service is great. I took Jet Airways in F lately and it convinced me to stick with Kingfisher from now on. The Jet seats were old and worn, had very little pitch/recline and the service was weak compared to Kingfisher. On many routes these guys have the exact same fare, given that I'd take Kingfisher in a second over Jet or the other domestics.