If I recall correctly, our syllabus calls for a total of twelve sim sessions, each around 4 hours. Lessons 1-8 are training, session 9 is Maneuvers Validation, lessons 10 and 11 are four line-oriented scenarios (training), and the final session is LOE (another two line-oriented scenarios). This seems to be comparable to training programs at other regional airlines.
I have a lot of respect for our training department, especially our sim instructors. I helped out last year(doing sim support) with two guys who needed THREE extra sim sessions. Our instructors were totally professional and did everything they could to help the two new guys. Both of 'em made it.
I agree that you don't want a training failure on your record, especially as a new Part 121 pilot. And yeah, the Air Group is cheap. But, people that show up for training need to come prepared and be willing to commit 100%. The training program isn't set up to teach you basic instrument flying. You need to be current, at least close to ATP standards. It's also a bad time to be distracted by personal issues. If you have to deal with a serious issue (say, a death in the family), then talk to the training department and get assigned to a later class.