I just returned from an Asia trip that included five days in Myanmar (2 in Mandalay, 2 in Bagan, and 1 in Yangon). I used Exotissimo for the Myanmar portion, and they were excellent. Good planning advice upfront and seamless execution while we were there. All three guides were great, and they were flexible during the trip as we wanted to make changes to our itinerary on-the-fly. Great experience.