Got a chance to check this place out and as a fan of architecture and design it was a fun trip. The only reason I don't give it five stars is that you can't just wander around. It's understandable why, since there is a school there with students and such.
The docent on our tour (or guide?) was excellent and I guess I signed up for the 90 minute tour. Not sure what the other tours are like, but I was very happy with it. The price is reasonable and to help support Taliesin it's totally worth it.
Lots of good insights and a gem out in the desert.