Interesting comments as IMEs, for the next 4 months, all my paid reservations are brg approved without any questions and hassles.

From December 2015 to March 2016:
Le Meridien Cyberport
Sheraton Hanoi
Aloft Bogota
Four points Barranquilla
Sheraton Costa Rica
Aloft Bogota
Four points Medellin
W Bogota
Sheraton Gateway Toronto Airport
Sheraton Dubai
Ajman Saray
Grosvenor House
- all approved first try, with no back and forth. YMMV I suppose.