We went out on the Ephedra's Grotto Canyoneering trip with Chris and Joe and I had a great time. I have done this before and was still very engaged and that's because the guys were awesome, and the scenery goes without saying.
I will most definitely come back to Moab and try to customize trips with the Moab Adventure Center, especially if it's with people like Chris and Joe. They had such great knowledge of the area and they were always safe. The guys were natural in interacting and involving the group irrespective of the level.
This was a pleasant, unexpected hike with great rappels through an excellent company.