I actually find their container classes to be much more usable than the STL containers. Obviously that locks you in to Qt, but if you're already using it for a bunch of other stuff in the same application, that seems like a pretty minor concern.

I also don't understand the hate for moc. It's certainly not the most elegant solution, and far from perfect, but it's effective and 99% of the time you can pretty much forget that it's even happening in the background.