It's very simple, just imagine a normal keyboard without much travel. Totally useable, you just have to get used to it. I use the Magic Keyboard with my monitor which has less travel than the Wireless Keyboard I had before, but I got used to it. The MacBook has even less travel, but I actually quite like it. People love to hate on new things, but it's all exaggerated in my opinion.
Yesterday I did some 3D CAD in SolidWorks on Windows 10 via Bootcamp and my external monitor. Smooth af, handled rendering not that much different from my MacBook Pro. Granted, I had a fan set right next to the computer for cooling (see image). Looks funny, but it works! (I have not tested CAD without the fan)
Again, I'm going to get a high-end 2016 MacBook Pro, but this MacBook is a very impressive product.