I listen to music almost 8-12 hours a day and having a music service that makes it easy for me to do so is awesome. I would gladly take a subscription to Slacker!
As mentioned elsewhere in this thread, Slacker appears to have a much larger library than the competitors. I like not having my station go into "repeat mode" after just an hour or two of play-back.
I love Slacker Radio. I use my Evo to stream SR via Bluetooth to my car headset unit. It's awesome to be able to blast crystal clear tunes while waiting at a red light....Until I get one of those "Tweet your favorite Slacker Radio songs!" type of ads at full volume.
Hey Android Central, please give me a year of sanity & help me win!