Hi,
I recently did my IR conversion course at AD. My experience was also positive. I had to split the training in two due to work back home, but they were flexible and adapted to that. Since I was in a hurry I asked for double booking in the simulator and when it was possible I got it. There is always some things that could have been differently (like getting a schedule for the whole week), but the instructors were good, I finished on time and I paid was I was told when booking the course so I am happy.