I'm a librarian who loves anime, manga, and reading a wide variety of genres.
I've essentially finished this - everything else from here on out is bonus materials (Yukikaze facts, a couple essays) - which means it's now #5 in my annoying review backlog.
What my review is probably going to say, in short: This was so good. Yukikaze is awesome. The ending was depressing, but I just took a peek at the last few pages of Good Luck, Yukikaze (cheating, I know, but I had to!) and I am hopeful.
I wish my work schedule weren't so awful this week, or I'd try to bang out a review really quick and start the next book ASAP.