Travel Review: Luxury Peru Vacation, Lake Titicaca, Floating Islands, 2-Week Tour

Our recent trip to Peru was our third Zicasso experience and we were once again very pleased with the excellent standard of service we've learned to expect. The pace was assertive but not overwhelming, the breadth of the experiences varied, fascinating, and informative, the guides pleasant, respectful, and knowledgeable, the drivers courteous and seemingly careful, and the standard of hotels and restaurants excellent.
Compared to our other Zicasso trips (Vietnam and Morocco), we did notice some minor miscommunications this time which we attributed to the three layers of accountability - Zicasso, the travel company, and the airline company.  In our previous two trips, every detail was seamless.  But, the minor glitches this time in no way took away from our overall experience, and our trip planner was very good about checking in regularly to see how things were going. 
We also noticed that this time we were blended into other groups in a way we hadn't been on our previous trips, but again, this didn't negatively impact our overall experience.  With all the travel around Peru, we were with different guides at almost every stop, again a difference from the more consistent arrangements on the previous two trips, so there wasn't the same sense of developing a very easy, familiar, comfortable rapport with guides and drivers. 
A small detail that we missed this time was the provision of bottled water, especially in the cars, but we realized the environmental protection emphasis to avoid the use of plastics was a sound reason for this change.  Luckily, we had brought our own water filter containers so were able to use the tap water.  
Also, the very specific guide for tipping was extremely helpful, and we wished there had been some guidelines for tipping in the 'all-inclusive' situations like the train and the hotel in Lake Titicaca.