It definitely was a challenge, but our guide made it the most enjoyable adventure I've been on.
The "family concept" our guide came up with kept everybody working as a team and the toughest parts of the trek were doable by everybody in our group. What can you say about the education our guide gave us on the trail, the fauna, and the history of the trail and the sites. The porters are unbelievable as well the chef. I felt like I ate in a five star restaurant at every meal.
To conclude I would recommend Inca Trail Reservations to anyone interested in the trek and Aver rocks.