Our second son just finished his freshman JUCO year and had a great experience. In comparing his first year with our older son's first D1 year at a state school we found the following:
1. Academics were comparable for freshman. Both kids studied hard and had great GPA's. D1 had larger classes, less contact with professors, and less work averaged for grades. JUCO had smaller classes and more quiz and project grades.
2. Living accommodations were very different. D1 players lived in campus apartments. Very nice with pool, volleyball, private bedrooms, kitchen, etc. No meal plan, though. JUCO was more traditional suite style dorm with RA, shared bedroom with private bath, and meal plan. Coach checked on them frequently. I definitely preferred the JUCO living experience for freshman. 18 year old student athletes do better with meal plans and some supervision, IMHO. Both kids had great roommates ...quality kids from homes with high academic and character expectations.
3. Baseball experiences were different, but positive. D1 son started every game as a freshman against top D1 schools in the Region. Great experience, but he struggled on the field that year, as did their young team. JUCO son did not make the starting rotation (very talented Soph. starters), but still played a ton in fall and spring in mostly non conference games. Team won Conference. Both had fantastic coaches that spent extensive individual time on their skills development.
In looking back the most important thing to our boys that freshman year was the coach ... his knowledge of the game and interest in their development. They made their school selections based on gut feelings about the coach and weren't disappointed. I would have preferred that they made their school selections based on degree plans, etc., but we let them decide and have no regrets.
It's funny, but I don't think the D1 son would have developed his baseball game as well during his freshman year at a JUCO or the JUCO son would have developed as well at a D1. However, I do think both would have done well academically at either school.
Hope this helps.