M1 has been awesome! My classmates are great, the school is beautiful, and our professors are AMAZING. I can't emphasize enough how great the professors are here. I come from a large public university, where the profs were mostly focused on research and were (generally) subpar teachers. Here, the faculty focuses on teaching, and it shows. Some professors knew my name before I even met them, which was surprising but showed that they really care about you individually.
We've been in school for about a month and a half now, and I feel like most of that time was spent trying to find the most efficient/high-yield method of studying. There's TONS of material to digest. Time management has been crucial, as well as knowing what to focus on.
I feel like our curriculum is very well balanced between lectures and small groups (PBL, I guess). MWF are shorter days (8-12), with about 2-3 hours of lecture and 1-2 hours of small group discussions each day. TTh are longer (8-5), but typically have lighter material like clinical skills, capstone presentations, etc. All lectures are recorded (and attendance isn't mandatory, but most people go and I learn better in person), but small group attendance is required
Compared to undergrad, it's a lot different. First, there's 8 AM classes every day, which was an adjustment because I'm not a morning person. Second, the amount of material that we go through in a short amount of time is staggering, but that's just med school in general. For example, we went through all of nucleotide metabolism, in graduate-level detail, in one lecture.