Excellent keyboard. Filco has managed to build a solid-feeling keyboard that just focuses on perfecting the typing experience. It's incredibly well made with very solid keys and no stabilizer rattle. The PBT keycaps have very crisp fonts and look and feel nice. The little details in build quality here are something that few manufacturers really seem to get right these days, but Filco have managed to build a keyboard from the days where mechanical keyboards were the norm: where they were no-frills but well-made.

This keyboard does work quite well with the Mac and with Linux. You may want to remap some keys, but that's up to personal taste. I use Karabiner-elements on the Mac to remap various keys, including swapping the functions of the Alt and Windows keys so they're ⌘ and ⌥, respectively. You'll have to do some research and find out what tools are available on your Linux distro to remap keys if you want to do that.

I find that this keyboard is super solid. No flex, creaking, wobbling, or anything else that on some keyboards feels flimsy. It has real Cherry MX switches, and I still feel they're the "Gold standard" of this type of switch, even though the patents are expired and a zillion Chinese companies are making clones.

The double-shot PBT keycaps are very legible and feel like good quality. They're a standard profile that I've seen called "OEM." Nothing fancy, just made well and they do the job.

I think this keyboard is easily compared to the MK Typist. I have both with Cherry MX Brown switches. They both have a similar colorway and are tools for typing, and look business-like. They're not going to jazz up the look of your desk, unless you do like "understated elegance." (I do. I like simple and clean.)

The MK Typist is a full size keyboard, while this particular model of Filco is TKL. I've started finding that I prefer a smaller keyboard like a 75% or a TKL. I rarely need the numpad. (I could get a standalone numpad if I ever do need to do a lot of number entry, and be able to use it when I need to and get it out of the way when I don't need it.) The MK Typist is, AFAIK, made for MK by Ducky, and mine does share some features with Ducky keyboards that I have.

Ducky keyboards are pretty solid (or at least the One and One 2 models), and the MK Typist is a bit more so. I think the Filco is another step up from these and it also has a bit more heft to it. It sits nicely on my desk and doesn't move around.

About the only thing I don't like about this Filco keyboard is that the cord is attached. I'd rather have a USB-C socket on the back and a separate cable. I guess this is a bit simpler and maybe more reliable since there isn't an extra connection to go bad. I think it also allows them to control the quality of the cable so people don't use a low-quality or faulty cable and then when they have problems blame it on the keyboard. You can argue this both ways though, and I'd rather have the separate cable, especially because I'm getting more and more into the USB-C world and it would be handy if the plug on the end of my keyboard cable was USB-C. Having a separate cable also means that you can use a cable that's just the right length.

To sum up, if you want a keyboard that's a tool for typing, the Filco Majestouch 3 TKL is a good choice.