I'd like to say, first, that what I'm about to say about MM is MY experience, and if there is someone here who had a much different experience, that is wonderful! I am not saying you're wrong, or trying to take away from your time there whatsoever. My time, however, was the worst time I have ever had.
I should probably give you a little back story. I went to MM right after high school, had been riding since I was 9, eventing at Training/Prelim level for several years, and brought my 18 (at the time) year old thoroughbred with me to board on campus.
I attended MM as a full-time student in 2010, for a nine-month riding masters program. I lasted six months. This is the type of school that you will spend thousands and thousands of dollars on, and then walk around campus wondering "where the hell does all my money go?" There is NO turnout. What they consider turnout is letting your horse free-lunge around the ring for 10-30 minutes at a time, depending on how early you woke up, how many other people are waiting to turnout their horses, etc. There is NO grass-grazing allowed, whatsoever.
The horses are fed corn, it's the owner, Ron's, defense against colic. MY horse, however, did miserably on this diet. He lost a lot of weight, and got very sick. Think about it people! When you eat corn, what happens? You see it in your poop the next day (graphic, but true). And it's because it goes right through you, there is very little nutritional value from it. Do you think it's much different for horses? I don't.
The barns aren't hideously constructed, but they aren't great either. They're wood, with dirt floor, and the wood only goes as low as the ground. MM is located in a valley, and if you've ever been to West Virginia before you know it tends to rain, and often. Many of these barns were placed next to a creek. It rains, the creek overflows, the barns were flooded several times throughout my stay there. And when horses feet get constantly wet, they develop thrush. There were few horses that I remember not having gotten thrush at least once. My horse had never had the issue before, but he certainly got it there. And they're "cure" for this was to spray athlete's foot spray on the bottom of the hoof. Yeah...No.
The dorms feel like a prison cell, if you're in the main dorm. No windows, all cinderblock walls, unless you're on "co-ed" side. You're allowed to paint and decorate and write on the walls and do whatever you like, which helps, but not much.
The other students were either all racist, or extremely stuck up. I made few friends, but you could always put that one back on me I suppose.
I never ate food at the cafeteria, personal thing, so I couldn't tell you much about it, or about the "bus" rooms or "trailer" rooms. I hear they were better, but I never tried them, so nothing I could say about them would matter much.
The instructors were nice, but I didn't learn anything I didn't already know, and I felt they changed my riding style quite a bit, and in a way that doesn't seem widely accepted in other areas. I was actually taught back OUT of a lot of the positions they taught once I came home and began working with other instructors again.
I like a lot of the theory of MM, like heeding (a way they teach of leading and communicating with the horse), and using grooming as a key communication tool. However they didn't teach it well, or with much patience. And when I took my first Training class with Ron, MM's founder, where we sat with him in a room while we watched an upper-level student work with a new horse in training, he would prattle on and on about a lot of things that didn't even pertain to the lesson. I think some of the most memorable advice I got from him were "don't fart while spooning." and "Don't take a sleeping pill and a laxative at the same time." Funny? Absolutely! Worth the money you spend? Absolutely not.
I did feel like a slave there. I've cleaned stalls since I was nine, there was a period of a few years I would clean 15-30 a morning without much problem. The way they have the schedule set up here...just prepare to not have free time, ever, and when you do being far too exhausted to use it. I would not consider myself a lazy person, and this seemed far too much for me.
When my horse and I came home he was extremely underweight, and almost...sad. This sounds corny, but he was not his old self. It took awhile to get him back to normal. He seemed uninterested in everything.
My personal, personal advice is run. Do not risk your own mental well-being, I certainly did.