I have used it. I like it quite a bit. It's very simple and integrates nicely with Scalate, a Scala templating library. Scalatra + Scalate + development using

I have used it. I like it quite a bit. It's very simple and integrates nicely with Scalate, a Scala templating library. Scalatra + Scalate + development using simple-build-tool (using ~ prepare-webapp) is a pretty killer combination, in my opinion. The feedback cycle is every bit as fast as rails.