Mountains, adventure, walking in the open are in short what you get on your trip to Machu Picchu.
The walking is doable and fun. A perfect balance of effort and rest. Friendly and knowledge full guide, friendly crew. Food is great especially given the basic camping circumstances. All included services are done with great care. Further beautiful landscape, nice scenery. Camping in is in tents generally in another shelter to protect you from the greatest rain in the rainy season.
But also lots of beautiful weather although. Beautiful views and a visit close to the glacier and a glacial lake where you can Swim if you dare.