I can only talk about the HS 125 courses beeing held at CAE Dubai. I made very good experiences during my initial for this aircraft and, until now, 3 OPC/LPC there.
Have met very good instructors, people taking care of the customers, all questions beeing answered, good sim-schedule (day).
No-US-Visa-TSA-nightmare, just go. They even have a small restaurant, where you can recieve hot meals. (mostly chicken with rice or, on other days, rice with chicken). Never saw hot meals in any FSI centers I have been. (Tucson, Wichita, Orlando, Paris, Farnborough)
I found one disadvantage: during training with FSI on different aircraft before, I was used to receive new manuals with each recurrent. That is not happening in Dubai, I have no idea if CAE does elsewhere.