This year I cancelled and moved to Spotify.
For $2/month it was a great product and a great deal. But the product didn't change over a 5 year period. I found stations got stuck into the same set of songs and would stop adding new ones. I wonder win the last time the Music Genome Project was updated? More infuriating, their buggy Adobe Air desktop app was never fixed or updated.
Three years ago the price moved to $3/mo. Two years ago it moved to $4/mo. This past year they got rid of any grandfathered discounts and charged $5/mo. I was sick of paying more for the same product and jumped ship. I do miss my radio stations, but Spotify's prebuilt playlists are pretty good replacement.