Easy review... Perfect! Amazing experience! Tsering and his guys did the best of this trip. Service was perfect and I felt the whole time beikg with the best people to support a trek like this. We were a team and they gave me support in that difficult moments when I felt AMS. At the end all great and EBC, Kala Pathar and Island Peak challenges completed thanks to the team! So I totally recommend Tsering services for any trekking/climbing experiences at Himalayas... Excellence in service provided!