Former Gentoo user.
Several years ago I used Gentoo as my home distro. You not only had to select the packages you installed but wait for them to compile before you could use them. I learned a LOT about the internals of Linux. It was a good learning experience in the internals of Linux and all of the components needed to make it usable.
These days, I just want the system to work so I switched to Debian a few years ago.