Great views. Amazing food. Machu Pichu itself was a sight to behold !! Great company. Porters are an inspiration after all they carry the heaviest of weights and trek across miles and over mountains at lightning fast speeds! Inca Trail is a test of determination, mental strength and your faith in yourself more than physical, however I wouldn't discount the physical energy it takes to complete the whole thing. :).
Day 3 and 4 were my favorite since I finally found my rhythm and could get the treks done at a decent pace.
Meeting other fellow Trekkers and hearing their stories also added to the whole experience. Not for the faint hearted :).