I remember low-budget sites before and after bootstrap, and I gotta say that post-bootstrap is way more usable. While you can mess things up with Bootstrap, the limitations help guide you to settle on standard decisions (like their nav bars, verses whatever cute creative thing people would do on their own).
So when you see a website built on bootstrap, you think "oh, that's impressive design" as opposed to "oh, they didn't have any time or money to spend on design"?
