I cant speak for the instructors, But I attended SIMCOM from 2006-2013 for Citation training, and they were really good to me. I had the same instructors there each time and they seemed happy. That was quite some time ago, but If I was still flying a Citation I wouldn't think twice about going there again. I have since been going to CAE simuflite, who has a great facility in Dallas. They too do a good job. I think as a instructor they are begging for guys, if your buddy is up for moving I would be going to CAE as my first choice.