Tibet Odyssey Tours (TOT) did a wonderful job organising a trip for us (2 people) based on the requirements we set forth.
Amy (trip coordinator) was always available on WeChat (even on weekends & late at night) to answer questions, solve problems and took a genuine interest in making sure we had a good trip. She even came all the way to Chongqing (we were flying to Lhasa from there) from Chengdu (where TOT is based) just to give us our visas/ permits.
Great job TOT & Amy! Keep up the great work!