Foam and foil switches are... well, interesting. If you want my personal opinion, they simply do not compare to the switches you have already tried. Especially to a Model M/F. But that's just my opinion, of course.
If you want to be on the safe side, I'd pass on it. I don't think realistically you'd use it as a daily board. Foam and foil is like that weird old '80s thing that you break out every once and a while because it's retro and weird. Not something practical for typing, and especially not practical if you want it to last a while (the foam rots with age depending on how well you take care of it)
But if you get into collecting, I'd recommend picking it up (assuming it's cheap.) Sounds like an interesting board for sure
