I first want to start with a word of warning about SMPs in general. Personally, I feel that SMPs are the nuclear option of backup plans. The goal of an SMP is to simulate the rigors of the medical curriculum to prove to schools that someone is medical student material. If you succeeds in a SMP, you've unequivocally demonstrated a med-student level capacity to learn dense material, deal with stress, and meet academic expectations. Congratulations, you're now the A5 wagyu of med school applicants—you can even apply to MD schools and find success. However, if you don't succeed in a SMP, well, you've just unequivocally demonstrated that you aren't med-school material. This double-edged sword is very sharp.
With that in mind, I entered MABS with mixed feelings, but I quickly found myself very happy with the program. The journey definitely isn't easy, but I feel the strongest I've ever been academically, I have made very strong friendships, and I feel much more confident in my future compared to where I was a year ago. Qualitatively, I am not the same person that arrived in Blacksburg last July, and I mean that in a good way. Quantitatively, thanks to MABS, I am matriculating to a medical school this Fall, so I got what I paid for.
Don't let the above scare you too much; no great reward has come without significant risk. Everyone's situation is different, and for me, it was a good fit.