From the various binary Linux distributions that I've toyed around with over the years, they are all about the same level. The best thing about Linux is that it is quickly becoming, if it isn't already, the most documented OS out there, where the vast majority of answers to questions are a mere web search away.
Gentoo is different from most in that it is 100% source distribution. You are essentially building your own binary distribution, so you can do pretty much what you want with it.
Sometimes it's a challenge, but the distribution rock solid reliable, having problems only when hardware starts having problems. It is one of the few distributions that doesn't force you to use systemd for managing services, as being old school, I prefer init rc scripts. It's a philosophy thing.
I wouldn't run Gentoo on anything less than 3 PCs network with identical software build configurations, because then you can take advantage of distributed compilation, so the software building part goes pretty quickly, throwing at least 6 CPU cores at it, and once the binary package is built and saved, any PC after the first just installed the binary package avoiding the compilation.
Right now, I'm running Gentoo 4 PCs, 3 of which are 4 core, 1 2 core, all supporting the distributed compilation and the same build environment.
I've been keeping an eye on Single System Image clustering, where the same OS runs on all members of the cluster, but rather than behaving and being viewed as individual nodes of a cluster, all the systems are viewed as a single larger, more capable computing system. This would be ideal, as once you've loaded and configuring a new node, and add it to the cluster, you've just seamlessly grown the size and capability of your computing system. Maybe some day.
