The experience was mediocre. First, we missed a large clay lick described in all itineraries. When we approached, there have already been some boats at the opposite river bank and people with tripods (and lots of parrots at the lick!), and our guide said that we are late, cannot disturb others, and did not even slow down the boat passing the place. The other small lick at Casa Machiguenga was quiet with no birds during 2 sessions we spent in the blind, either during weekend and next morning. Many other animals listed in the itinerary were not seen either, apparently the only one tapir spotted by the boat staff. Otherwise, only a long-distance observation of birds on the go, and the guide effectively refused to approach them close saying that he could not disturb them. I would listen to that if do such photography and/or trips for the first time, but that's not the case. This is apparently always a compromise. Some animals leave, others stay. In fact, most leave just hearing motor of the approaching boat, and you would never even know they were present just half minute ago. But others stay, and the same about more or less close approaching. Speaking generally, one should never even start such a business if does not want to disturb animals. All the itinerary was aimed to keep the schedule of reaching a specific place at specific time, not to animal observation or photography. Riding, riding, riding... Other frustration was anthropogenic pressure to the area. You would not see much if any primary forest on the banks, but lots of tourist boats roaming back-and-forth. The lodges we stayed at night were all full of tourists. By the end, our guide really lost much attention to the surrounding and spotting animals/birds, we were feeling that for him the program was over at least a day before of its real finalization. So, if you are happy to sit in the vehicle and in the boat many hours every day, and on the way spot or snapshot birds (sometimes also monkeys) from 150-300-500 m, that's for you.