You won't get many current MIDN responding to this for a good few weeks - and I do not know how many (if any) frequent this forum during the academic year. There are a lot of graduates on here from many times in Annapolis' history, and a number of current Candidates but everyone's experience will have been different.
If it helps at all: I am a Candidate for 2016, and thus far the application has been fairly easy. The only difficult portion is being able to stay on top of everything and keep from getting discouraged. If you have good relationships with teachers and counselors, and can communicate effectively through e-mail (or phone, if it is easier), most of the application is an exercise in patience. I check my status for everything several times a day (even DoDMERB, which I have been qualified for for weeks!); it can be a maddening process.
That may not have helped much. But current 2016 Candidates are the most likely source to get the most up-to-date information on applying over the next couple of years. Most current mids will be very busy once the academic year starts. It's good that you're already trying to find out everything you can, very good indeed. If there's anything I personally can help with, don't hesitate to ask. Although the alums that frequent this board will be far more helpful than me - I'm practically in the same boat as you.