I recently bought a reliance 3G connection. The experience to date has been really really bad. Most of the times it doesnt connect even if it connects the connection is so slow that it reminds me of old days of vsnl connections. The speed notches around 20-40 kbps in the best of cases.
The customer care is of no use, complaints are not resolved and there is no follow up. I sincerely advice people thinking of taking a 3G connection to avoid Reliance.