I've been using WF for a long time for a small site. Their resource use limits can be a little stringent at times though. If you keep running into the limits,

I've been using WF for a long time for a small site. Their resource use limits can be a little stringent at times though. If you keep running into the limits, I heartily suggest looking at switching away from their default stacks (especially when they use Apache -- uggghh) to uWSGI, for instance, if you're running a Django app. (`--http-socket :99999` or whatever the public port they assign your app will get you going easily). EDIT: Comparing WF to GAE is slightly apples-to-oranges, though, as WF gives you a slice of a dedicated server -- GAE just runs your app without letting you touch the infrastructure, much like Heroku.