Highly recommended agency. Very reliable. Central part of the tour was trek to EBC, and all worked as planned, despite some unexpected weather related obstacles. Guide Ratna was excellent, if you can specifically ask for him to be your guide, do it - very friendly, experienced and a lot of fun.
Besides EBC trek we did some country travel planning with this agency (Kathmandu Valley, Chitwan National Park, Lumbini, Pokhara) and all worked well, except hotel in Lumbini, but looking backwards I believe this is more about adjusting expectations rather than quality of the hotel.