We did this trek, by the end of summer and the views were fantastic.Our guide was best guide. He was knowledgeable, and highly experienced, took great care and went beyond his reach to give us the best service. We tipped him good amount :) Third Rock is a professional travel company, highly recommended for trips to Nepal, and treks in all the part of Nepal. Although it was our first time with them, we felt like we have known them from long time. So we will be doing Mardi Himal with them for the next time. Naba is in contact with us since 2 months.