I think the type of sim should be almost the last thing to think about. IMO the backgrounds and motivation of the instructor should be the most important criteria. Right now flight instruction is a buyers market, so you are in the drivers seat on who you train with. IMO there are 3 things you should think about.
1. Does the instructor have any real world ( ie non instruction )
IFR experience. It is a huge advantage to be tought by someone who can relate how the theory fits ( or doesn,t ) to the reality of line IFR operations.
2. Ask for names of previous students, If he/she is a good instructor he should be happy to provide references.
3. Do you like the guy/gal. Chemistry in the cockpit is important.
I have in the past occassionally recommended students try another instructor as I felt I was not the best person for them.
Finally I would like to note every school has a great sim. The airplane parked on the ramp at the end of the flying day. I strongly urged my sudents to sit in the parked airplane and recreate each flight. This was a great way to build muscle memory,review the fumbles, and get comfortable in the cockpit. And best of all it was FREE.
