I started out writing that I thought Anne Tyler was an under-appreciated writer, and then I remember that she won a Pulitzer, so perhaps that's not exactly the correct term.
I think people don't realize the skill it takes to write her novels. While I haven't read all her work, the common thread, for me, is that she writes about ordinary people in ordinary situations. She doesn't write Jodi Picoult novels - these are the "headline-of-the-month" type stories; they also aren't thrillers, or mysteries, or any of those other types of books that sell a bajilion copies. This is just an ordinary family, doing ordinary things, with ordinary conflicts and troubles. And somehow in Tyler's hands, their story becomes utterly fascinating. She has a way of taking characters that are not the most likable - sometimes even pretty distasteful - and teasing out the bit of humanity that allows her readers to sympathize with even the hardest cases.
Dinner at the Homesick Restaurant isn't really about anything - and yet somehow, it's about everything. Recommended.