The K750 is a scissor switch board I'm not sure how it would compare to the others.
I was not familiar with the terminology concerning the build of KB, so just now realized that my laptop KB is scissor switch - and that's what I hoped to find. It's travel distance is really small, and there is almost no resistance when you press buttons which I liked a lot.
Most flat keyboards, resembling a laptop's , have a plastic mechanism that is similar to two scissors assembled under the keys, that characteristic gives the name of scissor switch to those type of keyboards. GH is mostly about full size keyboards with other construction techniques than scissors. In general, a laptop keyboard is considered of low quality in keyboard aficionados boards; thus, they do not get much attention.
One very good laptop keyboard is the thinkpad's, old type, but even the recent chiclet one is not bad. I suggest you to try one if it is possible in your area. If you like it, there are some stand alone models that you can get from Lenovo store, or from ebay, that you can use with any computer, and they even come with a trackpoint.
In the other hand, if you want to really experience a nice board, you may try an actual mechanical one, however be prepared to pay hefty prices, if now a board above forty dollars is to expensive for you, you are certainly out of range for an actual mechanical board.