Did you get the offer?
It's true that Compass gears its training program towards current and past 121 members, but the process is more then do-able in a relaxed environment. The CBT's are big part of the training which you do in a month all on your own. Most regional school houses cover and go over the Flight Operations Manuals, plus Aircraft Systems, and will be there to answer or clarify any questions you have. However, you are on your own for a good portion of study material, and when you get to class you will have one week of systems and one week of company procedures which highlights areas of the CBT's. Having prior 121 time and turbine experience will make this easier as you know the areas of importance to study because the class portion happens very quickly.
The IPT "Instrument Procedure Trainer" portion and Sim portion are just like any other 121 training programs, and you will learn all the procedures from both seats for your type rating. The IPT portion will prepare you to use the automation so your transition to the simulator goes smoothly. Having some prior 121 time will help when you go into the simulator portion because your take check-ride takes place in the left seat. Again, this process is more then do-able, and Compass is not a washout training program. The Training Dept. will be there to help out if you have any questions as long as you meet them halfway.
The process from the new-hire orientation till your line check can be up to and exceeding three months depending on sim availability and check airmen availability. This training process can be a bit longer then other regional airline training programs. Hope this answer your question