I had arranged for a solo trek to Tengboche Trek. Naba and his team turned out to be a perfect choice for my undertaking. My trekking companion, unfortunately, turned out not to be able to cope with our somewhat demanding trail. But then I had Bimal Thapa as a guide. He did I entrust my trekking slow companion, and did my very own Trek. I would recommend Bimal thapa for any trek to Everest region.