I use SimpleWorker for some background jobs in our Rails apps, I like the service! It's totally the only service with a really nice dashboard to see how your jobs are doing, as well as scheduling them to run. Resque is good, but I wish it had a real scheduler.
I like it too obviously. I randomly met the guys last week and learned about it, it was very simple to take my script and just make it work. In general I see the Ruby/Rails community as being very receptive to services like this (and ours).
