I just went on a tour to Lake Titicaca with this agency. I had a good guide but felt that the two night trip was overpriced at $1000.00 for two. That is very expensive considering the cost of lodging and transportation in Bolivia. My accomodations were okay but not wonderful. The private hydofoil tour of the lake was good, but I didn't need a private tour,and then I didn't have enough time to see the Isla del Sol properly. I ended up feeling slightly taken advantage of.
If the trip had cost a third less, I would have felt it was worth it.