I’m confident you won’t regret it. I read quite a lot of SF, both older and newer. There’s a lot of classic SF that’s really good, but you have to constantly keep in mind the time it was written in because the story or the characters or the dialog is dated. There was zero of that with that book, it could have been written yesterday (the setting kind of insulates it culturally and technologically). And the sensibilities are so, so far ahead of its time.
I’m not at all bothered by “swear words,” and I’ll use them occasionally (mostly when I think it’s funny), but it’s somewhat rare. I just don’t find it very necessary most of the time. I can usually make my point just find without, but sometimes the emphasis seems right out, again, it seems funnier.