After messing with Bootstrap for about 2 months, I gotta say that I really like it. it gives a base starting point for starting new websites, or creating new designs for current websites. Its easy to get the hang of, and to tweak up.
Some of the drawbacks I found were that it when you changed the width of the page / layout the media queries didnt update, but this can be fixed within adding your own media queries and or updating the existing ones.
All in all, I still believe that the bootstrap project is a great project that hit the web developers community and it truly does provide a huge helping hand in developing new sites, with all the basic functionality all websites need to have.
Way to team bootstrap! You did awesome in your creation