We went on Valley Tours during a short (2 nights) stay in Nepal. They were both great experiences, and we were lucky enough to see a lovely historical display.
The guides (Ashok) was really enthusiastic and very knowledgeable, and the other members of White Stone that we met during the course of our stay were all also very helpful. The whole company has an air of laid back efficiency that seems typically Nepalese (to someone from the uptight, inefficient UK at least!).
White Stone Holiday is definitely the best tour operator we have ever used! Not just in Nepal but in comparison with other day tour operators we have engaged in OTHER countries, they definitely are the best in our eyes. Their service is very personalised and you can tell that the tour guides are genuine in taking care of you throughout the entire tour.
We took a variety of trips with White Stone Holiday when in Nepal and all were oustanding. Ramesh was our main point of contact and he was helpful, knowledgeable and really went the extra mile. He offered to collect us from the airport and gave us an orientation drive around town on arrival