I conducted a touch of self-experimentation and took the opportunity of having no clean binders, and I put on a bra for two days.
Oh My Gods I LOVE my binder!
Yes, I'm still a bit glum about not being able to go topless, at all, anywhere, ever, because of the chest, but compared to the simple abomination of the chest in a bra (or just "not the binder") the Binder is the most awesome thing ever.