After my antrostomy, I had a stuffy nose and couldn't sleep too comfortably for about a week after. But then everything cleared up and I think it was the best decision I took. The discomfort of surgery was nothing compared to the pain and irritation I had from my sinus infections over the years. I'm so happy I had it done.
The one thing I'd like to mention here, because no one ever mentioned it to me before the surgery, is that my voice changed a little afterward. I don't know if it really changed or if I'm hearing it that way, but it seems different and I have heard the same thing from several other people who had the surgery since then. It's not really a big deal, but something to note.