I had a horrible experience at the MO -- poor service throughout from Front Desk, butler, and Concierge. I was extremely ill but the hotel did not care to even ask if I needed a doctor.
I sent feedback to Kurt and all I got back was a form letter essentially telling me it was my honor to stay at their illustrious hotel and that next time my expectations should match the thrill of paying to stay there.
I still avoid MO BKK and do not recommend it to anyone. My home in BKK is the Four Seasons.
This really soured my impression of the hotel and the entire chain; that is, until I stayed at 3 of their European properties: London, Paris and Barcelona.