This is an amazing tour, which make you feel dead and excited at the same time. While after the 4 days, what will keep in your mind is the beautiful sites during the 4 days, the existence when you see the Machu Picchu, the happiness after you made effort to make it.
While all of this cannot happen without the professional and considerate tour guide, and the superman porters. Especially the wake up coca tea provided by the porters, make even the 3:00 am wake up not difficult.
They provide a good service, make all your suffering during the trip an incredible sweet memory. Love you all.