I decided to do this trip spontaneously and I don't regret it at all. The vistas are incredible, the Inca sites are inspiring, and the trail is challenging enough to feel accomplished.
The service was outstanding. The food was always good. The guides were knowledgeable and helpful. They also had a great sense of humor. The porters worked hard and always had our camp all set up and ready to go. The guide made sure we saw the best Incan site at the end when most others don't bother.
I would recommend this company to anyone. It's a great time.