Truth be told my group was terrified after orientation after we found out how tough this trek going to be :o . Once we set off it was quite different, yes our trek was hard but Americo made it fun, adventurous, and we learned a great deal about the Inca way of life.
Dead Woman's Pass had us all out of breath but we powered through it. We saw great Inca sites, took lots of pictures, and at some points we were tested to our physical and mental limits. Overall I'd recommend this trek to everyone. It's more about your mental ability to push yourself and keep trekking, because the end result of seeing Machu Picchu is definitely worth it... :)