Tried it in 2005 by recommendation of a co-worker. The food was absolutely fantastic, and I'm always tempted to try it whenever I go back, but can't find anyone else who likes spicy food. I haven't come across a place quite as good or interesting here as this.
As I mentioned, the food is excellent, but you will need to bring your patience. I think I went there on a good night because we got a table within 10 minutes (yes, the place is REALLY tiny), but it took quite awhile for our entree to be delivered to the table; the taste of the food will probably make up for it.