I can tell you that I worked for a time at CAE Simuflite in Dallas. There are good and bad:
Good: Pay is OK....start in the 50's as a light jet IP and eventually end up in the mid to high 60's as you get more qualifications. There is also the ability to move up into bigger, higher paying aircraft if you are there long enough. Benefits are fantastic. GREAT health insurance from day 1, 2 weeks vacation from day 1 and excellent 401K.
Bad: The SCHEDULE. It SUCKS SUCKS SUCKS SUCKS SUCKS. 60 hour work weeks are the norm. They run what they call a 5S2 schedule: 5 work days, 1 standby day, 2 off days. It's really a 6 on 2 off schedule, becuase they NEVER have enough staff. Once you get all your qualifications done, you'll be working 'doubles' all the time, meaning you'll be doing 2 sim sessions in 1 day. That equates to about a 14 hour workday. But really, it's more than that, because you have to show up early to set up, you leave late after you do paperwork, and you are usually stuck there for about 2 hours in between sessions, equating to about an 18 or 19 hour workday, a few hours off, then coming back the next morning. I remember teaching ground school from 8am to 5pm, then having a sim session that night that started at about 8pm and went till about 1am or 2am, then having to get up the next morning and be back there at 10am for another sim session because they never have enough people. In about the year I was there, I watched at least 10 people quit/retire just from my program. I asked one guy why he was leaving and he said "because I want to stay married." Working till 3 in the morning is not uncommon. Working 18 hour days is not uncommon. Working 6 days a week will happen pretty much every week. Every single quarter we had a quarterly meeting where they promised us how much better it was going to get, and it NEVER happened. It got worse. Essentially the schedule was so bad they couldn't hire fast enough to replace all the people that were quitting. Gulfstream 200 was right, I have seen instructor schedules with 100 hours in a week on them. What it boils down to is they work you about an average of 60 hours a week and pay you for 40 of them. Not to mention that they will beg you to come in on your days off.
All in all I wouldn't go back. It sucked. If the schedule were better then it would definitely be worth doing, because the money is good, the benefits are fantastic and you're home every night. But I have no desire to work my ass off every week at all hours of the night and always be too tired to do anything. I couldn't hardly enjoy my 2 days off because A: The phone was ringing with them begging me to come in and B: I was dreading going back to another 60 hour week 6 days in a row with doubles stuck in it. It's a real culture shock when you go from flying 3 or 4 days a week and enjoying what you do to working your ass off.
If things were to get better, it might be worth doing. The work itself was great, the clients were great. Meeting them, talking to them, having lunch with them, learning from them....everything there was awesome. It just sucked working so much.
Hope this helps!!