I put
flor Fedora down as an area rug in the sewing room on top of the polished concrete flooring, thinking the carpet would keep pins and things from bouncing too far away when they fell, and that the extremely low pile it would be easy to keep clean. My flooring combination looks something like the photo below that I pulled off of the flor website, except my flor is a gray-blue that appears to be discontinued now.
The flor Fedora carpet is easy to see pins on, so there's no real danger of stepping on sharp things, which is great. This carpet does not offer much of a cushion, but it's better than standing on the concrete floor alone. It's easier to glide chairs and tables on than a plush carpet.
The carpet collects threads snips and fuzz like crazy. It's like velcro for some of those bits. I use one of those giant lint rollers on it, but I probably should have been religious about rolling it after each sewing day from the beginning in order to have kept the carpet pristine. As it is, my carpet is now a darker hue than it started out because of all the dark fibers I use. Fibers get nestled into the grooves between the individual carpet tiles.
All-in-all, I prefer having the flor carpet to just having the concrete floor, it's just not as neat and clean as I want it to look.
I suppose I could start over with the charcoal color, and a promise to de-lint every session