[MiddleEndian]

I like Rails a lot and use it for my personal web-based projects. Rails (and Ruby in general) is (/are) great because of strong convention, as you mentioned.

But I would say that the danger is that you can break rules in bizarre unpredictable ways, which I've done myself and then gone WTF when going back to those projects years later.

It's also kind of annoying to set up and upgrade, lots of middleware to manage, but that's the case for almost every framework.