1. HUGE. (at least in my major) during all the intro classes. failed a bunch of them becasue thats not the way to learn and i felt silly going to office hours (NOT A SILLY THING TO DO!) some teachers care. some hate their jobs. totally hit or miss. my advisor bashed my marketing tearcher pretty hard once saying how he hates students and picks on the ones who he thinks don't do the reading - which in turn made me just skip class.
2. no such thing as a typical teacher. ive had weirdos, dicks who turn out to be cool outside of class, teachers who care and want to help, teachers who dont care, teachers who dont speak english, and teachers that cancel their office hours the week before finals "becasue if you needed help you shouldn;t have waited"
3. my tests (i was in the b school) were mostly in the fucking event center. if you have text anxiety just say goodbye to your grade. most of my tests were scantron. a lot of them were VERY packed with people and incredibly stressful. maybe a few of my finals were a little smaller as i finally got into smaller classes (like no joke senior year and by "small" i mean like 50 people). but as i got older my final exams turned into 100 page papers - which i actually perfer over scan tron event center exams.

4. good luck on residency. i think i know of like 2 people who actually accomplished this - with like 75% of the people i met being out of state.

5. i LOVE boulder. I HATED CU. i didnt feel like anyone was there for me. i didnt think the teachers gave a shit. i didnt feel like i learned as much as i should have... but looking back on it (graduted 3 years ago) my business classes actually did give me hands on experience. icant talk for the other schools, but i did have a handful of "real world" knowledge and some experience working in groups with outside businesses. I can see that my degree has brought me a lot of knowledge that didn't seem like knowldge at the time. but i dont know of any friends outside the B school that did any group projects. working with groups is HUGE. you will have to do it. you will have to learn to work with people, and its relevant when you are trying to work on a real life project with someone who never had that experience. i struggled thorugh all my core classes and my cirriculum in the b school was pretty much set wihtout any room to explore any of my interests. I did all my base credits and a SHIT ton of business classes. I would have loved to take an interesting class - sex and gender or deviance in society ... but i didn't have time in my schedule for these classes.

And i would be VERY careful to make sure your credits transfer. I know a LOT of peole who transfered or came in with AP credits that were not applicable for whatever reason. CU is NOT cheap. like my out of state tuition was ~45k a year.

but i love boulder. its nice. people are nice. i can smoke pot pretty much anywhere. i met a lot of awesome freidns... but the all have pretty much moved away from the college town at this point. boudlers nice if you dont mind being sucked into the bubble.