I would recommend reading this text only to German speaking people because my English is shit!
Me and my girlfriend did this tour together. All of you should do it....it was really funny and the best thing is that you can see many different landscapes in just a few days.....glacier, jungle,..
Our tour guides (Paul and Marco) are great guys...be careful with playing a toad with them-they can explain you what it means...;-) ...by the way - Paul did the toad!
The best day was the second - you will be close to the glacier of the Salkantay wearing t-shirts... You will love it.