I'm not a SimpleWorker user yet, but I'm going to replace my homespun Resque setup with it shortly.

I know there's a huge opportunity, as Worker prices are a huge pain
point for most Heroku devs. I released a Heroku scaling app for a
short time last year, and scaling workers was the number one request.
I didn't have enough time for a full release, but the demand was
there.

Scaling Heroku Workers was just a hack though. SimpleWorker looks like
the real solution.

- Jordan