They're way better now than they were a few years ago thanks to UEFI installations. No more having to do a complete backup prior to updates and having to fix all your kexts/drivers, or a complete reinstall for upgrading to the next OSX/MacOS major release. The biggest problem I have is needing to use a $6 USB adapter for sound, but it's so trivial compared to past headaches.
I was originally looking into buying a Mac Pro. I spent less than $1000 on this build, and got something much, much better than a $4k+ maxed-out Mac Pro or 2016 MBP, plus with the ability to upgrade storage, GPU, and RAM.