I was pretty scared of Lied Library during my first semester at UNLV. I wandered around the first floor hoping to find books or a map or something, but I ended up just confused and lost.
I went back a few months later and explored the library. It's HUGE. It's five floors of books and tables and nice bathrooms (based on University standards, at least.) The library uses an older technology than the public library, but self check out makes it easy to get books and go.
Table space is sometimes limited, but there's a ton of it. Computers are also extremely limited, but if you bring your own, there are plenty of tables with outlets and the quiet study room in the Book 'n' Bean never fills.