I did one near where I live. It was a purely puzzle based one about stealing a rich guy's diamond from his private museum. My team apparently set the record for it, escaping with 17:10 left on the clock - although the room had only been open for about half a year.
It was a great experience. We all enjoyed it, especially due to the host being very charismatic and thematic, while knowing his audience well. I want to try a few more of them at some point.