- Yes, there are some quirks in the standard library, but overall most of it seems very well designed. Having spent a bunch of time in Python, which also has a standard library with I'd argue even more quirks. But most Racket libraries seem very carefully thought out IME; I'm not sure that something this old can not have some weird oddities though. - We used DrRacket to teach a class to students who had never programmed before. What's amazing is that a) the students picked it up quickly and immediately... what other lisp can claim having something like that? and b) it's the only editor that I myself am happy to use other than Emacs. That's an interesting and unusual overlap, and deserves a pat on the back.
Yes, Racket has its quirks, but what doesn't? It's still an extraordinary project, community, development environment IMO.