Twitter Bootstrap is great tool for solo devs to do rapid development.
I have built http://smacktweets.com totally on my own in a few weekends. I'm someone who is pretty terrible at design and while smacktweets.com shows it, Bootstrap has definitely helped me maintain some level of "slickness" in my initial design.
I will probably eventually get a designer involved and wouldn't be surprised if I bailed on bootstrap at that point in favor of an entirely custom front-end but for rapid weekend development it's serving me very well.
I have built http://smacktweets.com totally on my own in a few weekends. I'm someone who is pretty terrible at design and while smacktweets.com shows it, Bootstrap has definitely helped me maintain some level of "slickness" in my initial design.
I will probably eventually get a designer involved and wouldn't be surprised if I bailed on bootstrap at that point in favor of an entirely custom front-end but for rapid weekend development it's serving me very well.