I bought it (and a slouchy black cardigan to go with it, because Tara-Lynn is right and sometimes you just have to splurge on yourself)! I'm wearing it now and I am very happy with it. One thing, though: it has hidden, in-seam pockets, which are kind of cute in theory but which I find impractical in practice.
(This is the super-cute polka dot version.)
Because of the way this blouse fits on me (a bit fitted at the hips), I know I'll always tuck it in. The pockets create entirely too much bulk, then, in the place where I need it the least. So I took my seam ripper, popped them off, and stitched up the sides. The result is a 100% perfect blouse!
n.b. I've been feeling guilty about something I wrote in that post; I don't hate on cashiers, ever, unless they're outright rude, and I was kidding in that instance. A man at a bookstore I worked at once yelled at me and made me cry because the lineup was long and the "real" bookstore across the street was out of the Sunday NYT. Even if it makes me a pushover sometimes, I will never be like that man! It's just not worth it.