I had a good experience with the 4 days Inca Trail . The first day was a rather easy day, a training day, but that was nice because then we had time and energy to get to know the others in the group. The second day was the hardest, but still a good and beautiful day.
The whole trail was very beautiful and we had a good guide who told us about the different Inca sights and he was good at setting a pace which everybody could follow, or he would wait and take breaks so everybody was together. A really good experience all in all.