I have had Arch break on numerous occasions. This is especially true if I am compiling things from scratch frequently. I've had Fedora break as well, but less so and generally it's easier to find my way out since I can refer back to the release notes.

I haven't really found anything I'd want to do that I couldn't do in Fedora. It's well documented, it's close to upstream, it's got a large community and it's linux. I don't feel I have any less power from using Fedora than from using Arch. Other than the rolling release and installation process, there's not much to separate them in day to day use.