rEFInd works strictly in UEFI mode, so given that you seem to work primarily with older or more exotic stuff, you are probably not likely to have any use for it at this point.
Haven't gotten around to doing this install yet. It will be part of setting up my workstation with Linux and moving away from Windows for work. (I have several machines with Linux, including my laptop, but so far I am still on Windows on my main workstation, but this year should be the year of the switch for professional uses.)
I bought a new SSD on which I'll install Linux, and I'll keep Windows on its own SSD (for the time being.) I plan on using rEFInd as the boot manager, installed on the Linux SSD in order to have completely separate and autonomous installs. rEFInd should be able to chain boot Windows on the other SSD, so the Linux SSD will be set as the primary boot device, but the benefit of this scheme is that each SSD separately will still be able to boot.
So, this is the plan.