We did the 6 day, 5 night Ausangate trek with the Rainbow Mountain. Our guide Cirilo was great, incredibly friendly and knowledgeable. Hector, our cook, worked overtime as he also prepared our meals, which were quite good and plentiful! The horsemen were also extremely friendly. The scenery is out of this world, and keeps getting better every day! The fifth day is the most spectacular views of the trek! The days are not too long, though more exhausting than the distance would suggest given the high altitude. I would strongly recommend doing this trek to anyone interested and would highly recommend Hike Ausangate!