The pool lessons were good and the instructors very nice. They recognized the more nervous/inexperienced people in the group and ensured that they felt comfortable. The only fault I would say is that they did not go over the pressurizing your ears very well, when on the dive I indicated to one of the instructors that I was having trouble with my ears and he more or less just pushed forward with everything. I highly recommend asking to practice pressurizing, although it may seem like a simple concept, if not done correctly it can be quite uncomfortable.
I believe it would have been more enjoyable as well if you can get a group that are all going on the same type of dive. Our group was divided between beginners and experienced people, the experienced divers won out and so there was a lot of time spent high above the bottom because it was too deep for us beginners.
overall good experience and I would do it again knowing what I now know.