I have determined through a lot of time and money trying at least 25 keyboards over the past year I too like like the flat style like the K750. I bought and tried: Cherry MX Blue/Brown, Some Cheap Cherry clones on Amazon, Various rubber domes like K120/Kensington Keyboard for life/Microsoft 600, Matias Quiet-Click, K800, Razor's, Gaming BS, Vintage Rubber Dome, Etc. Even came close to buying Unicomp Buckling Spring and also even searched the Bay for old versions this article is about (holy grail vintage Model-F) but refuse to spend more for keyboard than a i5 CPU (and the reason I would never buy Topre either).
Mechanical keyboards do feel good and remind me of my youth, but to me are dinosaurs. Big, bulky and noisy. While it is fun to see them making a comeback and popular with the younger gen, I personally don't understand the appeal of them in 2017. Annoy co-workers and people on other end of phone calls. I even woke up my 6yo son with my Cherry Brown one night typing away.
Trying all of these I eventually caught myself sort of missing the low-profile laptop style scissor-switch ones I have tried. I really liked the K800 and K750. K750 I eliminated as mentioned above, the K800 I took back because Logitech purposely disabled key combo's on it and it was a middle finger to anyone who wanted to game on it, even a little.
I think the latest version of the Mac Keyboard with even less travel than the previous one is beyond what I like though. That is TOO little travel and feels like I am just typing on my desk surface. I am thinking of getting the new Surface keyboard as I tried the latest TypeCover and liked the feel.