yes, i do know what you mean about the 1L study carrells. I definitely would not study in those. I think the law library and the UG library are the best places on campus to study. The UG library is stunningly beautiful and, unlike many other UG libraries, it's easy to find tucked away study corners that are actually silent.
Also, there are tons of lecture halls, libraries, department lounges, etc., all over campus that are both open and vacant after 5 p.m. I had great fun at UH finding quaint little study nooks all over campus.