We had a enjoyable and interesting experience. Our guide was very knowledgeable about the region and canyon. Our group had five people and made for a more enjoyable hike. Now, without being critical this is not a hike for "large or overweight" people sorry. The interior of of the canyon is tight; the stairs and ladders are narrow so be warned it is 400 meters of slippery sand and narrow cave-like turns. It is well worth your time but you have to put forth some effort to traverse the interior.