I just returned from 10 days on a mountaintop in Vermont at Bread Loaf, which is to writers what MIT is to rocket scientists, what Berklee is to rock guitarists, what RISD is to painters. It was transformational. Truly life-changing.
If you’re a writer, and are serious about your writing, GO. The application is due in March, I believe, so you have time to get your very best stuff together. You are unlikely to return the same.
Many have written more extensively. Here is one such article. My own piece comes out this fall, so I won’t spill the beans by posting it here.