We did the 8 day trek, Choquequirao to Machu Picchu, and it was the trek of a lifetime. Killa staff went above and beyond our expectations, everything was perfect. From the beginning, the email communication was very easy; Nicole was very responsive and gave plenty of details, thoroughly answering all our questions and dissipating our doubts. We had initially booked for April 2020 but we had to postpone it to October 2021 due to covid. When we finally made it to Cusco, we had a briefing with our guide 2 nights before the departure, and Aldo showed up perfectly on time at our hotel - we had a great first impression, and our 8 days together confirmed how great a guide he is. Very friendly, knowledgeable and interesting, and he also paced the hike and adapted to our level. It was a tough trek, getting us out of our comfort zone (some days involved 10h hiking at 3000m), but the staff were amazing and made it as smooth as possible. Besides Aldo our guide, there were 2 horsemen with their 5 mules, as well as a cook chef and his assistant. Each night when we arrived at our camping site, our tents were already set up with our bags inside, and we were literally waken up with a steaming hot cup of freshly brewed coffee (mind you, no instant coffee!) in our tent every morning. Food was DELICIOUS and plentiful; there was always a starter (often soup, every day different) and a main, and on top every evening we had happy hour with freshly popped popcorn, as well as a desert. We also rented the sleeping bags from them: they were clean, warm and comfy.
Killa is a small, locally owned agency, which provides top notch service. I can only urge you to book your trek with them, they are truly fantastic.