Undergrad, I was a full time student with only a small part time job and it was fun. Didn't drink or party but did have a lot of fun hanging out with roommates, chasing girls, working out, games, and I loved the classes I was taking and my major.
Grad school, I was working full time and doing part time school, and I hated it because of the constant rushing to class after school and idiot professor changing schedule to day time as if people don't need to work. The school (SJSU) is also worse than my undergrad school (UC Davis) so that also make a difference in terms of how well I enjoy the classes (worse professor, worse classmates to do projects together with) but most importantly I no longer have free time to do all the college life things again.
IMO the amount of time you have makes a huge difference.
Grad school, I was working full time and doing part time school, and I hated it because of the constant rushing to class after school and idiot professor changing schedule to day time as if people don't need to work. The school (SJSU) is also worse than my undergrad school (UC Davis) so that also make a difference in terms of how well I enjoy the classes (worse professor, worse classmates to do projects together with) but most importantly I no longer have free time to do all the college life things again.
IMO the amount of time you have makes a huge difference.