one good thing about hav is that we have the consortium so you can take classes at swarthmore, penn, and bryn mawr. people do use it & it means you have access to lotsss of courses. i don't know comp sci specifically but the math program is quite good, and research in lots of stem fields is very accessible and even underclassmen get research positions. the only downside i can think of is it's quite small and you will know a good majority of the people at the school within a few months. that's definitely not for everyone!