I haven't ever used Radionomy, but I know several people who are. Most of them believe the service is good, although it can be buggy at times. I know someone, though, who is in the process of setting up an acct up with them but is having a very difficult time logging into their system, pages not directing to the proper place to upload music, etc. He refers to Radionomy as "Dead-End-Central.com". lol