For "simple" scripts or server processes that you might call from cron, it was fine. But for web development, it was always so hard to get up and running - get everything configured and then know how to do things - that I always gave up. The Clojure community really values choosing libraries and tools and seems to echew Rails-like approaches. That's good if you know what you're doing, but it makes the cost of entry really high. And for better or worse, Ruby is a pretty nice language and Rails is pretty easy to get rolling with... so it's very difficult to justify the effort of switching. I want to... I really do. But at this point, unless I work for a shop like TFA, it will just never happen for me.