Hello,
Maybe we'd be a good fit for trading chapters - I've got a YA science fiction romance manuscript. I read a lot of adult science fiction as well, both soft and hard.
I'm mainly interested in getting second opinions on the plot, pacing, and character development, but if you're interested in doing the nitty-gritty spelling stuff that's great too. When I edit, I do note spelling/punctuation/grammar as well as the more global issues like plot/pacing/character development.
Send me a pm if you're interested in trading!