I too like him. The fact that he was completely broken and has just had time off, doesn't mean that greenbroke (like she has in her ad)
Once you start working him him and bonding with him, everything should come back to him.
Since you are going to have a trainer helping you, see if you two can come up with a written plan as to what to do with him (when she's not around)
I would go take a look at him, and what had worked for me, was to expect the worse with everything, and when you see that the horse is better than that, then it sort of helps.
btw, my qh, wasn't ridden in about 4 years until I got him. We still have things to work on, but it's nice because the horse has a memory of what has been done, but all it takes is just finding that information and pulling it out.