Yep, we installed it for
https://eaternet.io – restaurant health inspection scores. Looks beautiful.
I usually do a manual installation of Sphinx Search or something similar, and do all the tuning myself. But for this project, we're using Heroku and total PaaS-based development. Swiftype was a great drop-in solution. It's been excellent, and as a fast as a well tuned Sphinx implementation.