I'm a current MATC student and I did all my pre-reqs there as well. I mostly used the Mequon Campus but also did use Downtown for A/P179 and BioChem and enjoyed those classes there as well. I really love the Mequon campus though so I'm hoping to take all my nursing classes there!
I just petitioned this semester to start the core classes in January and got in, so I'm excited! The petition process is a lottery system so you just have to have all your paperwork done and turned in on time and then hope you get picked.
Your pre-reqs include the classes you need, also taking the CNA class, and then the NLN exam, health records etc.
If you don't have any of the pre-reqs done that will take you 3 semesters (minimum) to complete. Good luck!!