My friend and I did the Salkantay trek to Machu Picchu with Sabi Silva, and highly recommend him as a guide. Sabi is extremely knowledgeable about the local area. We learned about local culture, history, plants, and food, and did our best to learn some Quechua words.
Sabi's attitude was relaxed, friendly, and easy-going. He let us set the pace of the trek and answered all of our questions about the area. We had an amazing experience, and I would recommend his company to any of my friends or family who are travelling to Cusco to trek.