Hey, I've decided to go to MGH but I visited Simmons a while back. The campus was small and gave it a close-knit and cozy vibe. I wasn't able to attend a class or view inside the lab since it was finals season, but from the outside looking in I'm sure the facilities look great. The admissions person told me their top selling point compared to the other Boston schools was their smaller cohort. They were really open to answering questions, even via email. I'm sure a current student could answer this better, but I hope this helps