Bootstrap 2.0, From Twitter
I am going to chime in being negative against the wave of positive feedback here.Twitter has done well releasing this and when I first saw it ages ago it looked neat and fairly professional.However, like a pop song which has been completely overplayed on the radio it has become tired and frankly a bit annoying. It has its uses offline to quickly get a demo up and running but it shouldn't be used on a live site. At least not in its entirety.If you have to use this for your project due to convenience or lack of design skills then do everyone a favor and mix it up a little bit. Change the colors on the buttons. Avoid the black bar running along the top of your website. Just don't look 100% like a vanilla bootstrap site.