Obviously, I have a vested interest in seeing people come to places like ours for training. So take what follows with a grain of salt.
That aside, any training you can get on subjects like this is worthwhile - generic training will help you to understand what you should be looking at, as opposed to just what the company pilots tell you. (not that they are going to try to deceive you, but they may be told not to bring up some subjects).
That probably won't be the case with Bombardier- I was fortunate enough to do an audit on their Toronto post-production operation several years ago, and was incredibly impressed by the thoroughness of their planning and training.
If they will release it to you beforehand, ask for a copy of the post-production acceptance test schedule, and study that so you have an idea of what to look for. If you can get some simulator time to go over that schedule so you know what to look for, even better.
But training will prepare you well for this.