I like the idea of running a light C++ application on a crappy $5/month VPS and squeezing out every last drop of performance, built on top of the idea that modern C++ developers can crank out solutions as fast as Ruby or Python developers. From interviewing and talking to people, I don't think the vast majority of developers really understand how far C++ has come in the last 15 years.
The real PITA with web frameworks is how they interact with the database. Now that C++ has some decent ORMs, an improved feature set, and some strong renewed interest, I think we can make C++ a "web language".