Just like any 121 new hire training, expect to study your butt off. My roommate and sim partner made it a point to study till about 9pm every night after class and one full day on the weekend. We gave ourselves one weekend day to unwind and do whatever. Overall I think the training was pretty decent. If you come prepared, especially for sim, they are more willing to work with you a little extra. Also, since class sizes are pretty small, it's very easy to get one-on-one assistance. Everybody wants to see you succeed.