This is a great, great lesbian love story. When I think "lesbian love story," the two books that come to mind immediately are this one, and (the in some ways quite similar) Claire of the Moon. They share a certain beauty, they're sweet and sensitive, and they're about real, deep-down, soul-shaking connection between two women.
Curious Wine's two main characters -- Diane and Lane -- draw you in, and the others are not only great foils, but have their own tensions and issues to work through and deal with. I guess you could say there's a good deal of "CR" going on throughout the story. :)
The heart of the plot is the growing relationship between the two main characters, and the personal growth that one of them -- who had considered herself heterosexual -- has to go through to figure out what she wants for herself. Sub-plots revolve around the supporting characters' lives, and their roles in Diane's and Lane's lives.
The story's so engaging, the writing so flowing and smooth, the characters so hard to leave behind that I end up re-reading this book on a pretty regular basis. Read it, love it, read it again -- and again, and again ....