My wife, 2 sons and I did a week long Annapurna trek with Third Rock and were absolutely delighted with the service. Their communication prior to the trip was excellent and they were there for us every step of the way. They learned quickly what we were like and what we liked and made adjustments to suit us. In addition, they were always honest about everything, which meant no surprises. Our guide Pawen could not have been more professional with us nor could he have been more caring with our sons. His positivity was always contagious. This trip to Annapurna was very special and we intend to use them again for an Everest trek when we return to Nepal.