NuPhy Air: best keyboard so far
Out of all keyboars I've tried, NuPhy Air is the best one so far. It has low latency, good key feel and key travel somewhere between notebook keyboards and full-size mech keyboards.
I've tried many mech keyboards before, including super-minimalistic Vortex Core and the split ZSA Voyager. Most of the keyboards that have "layers" didn't quite work for me. Mostly because my typing style makes use of "rolling over" the keys, and because of this I was frequently releasing the layer keys too quickly. There are many people like me who have trouble typing using layer keys, and some solve this problem by adjusting the key release timings.
Full-size Varmilo keyboards worked a lot better, but I find their keytravel too big. You have to type really hard in order to register a keypress.
On the other hand, typing on laptop keyboards feels too shallow and unsatisfying. This is why I was super impressed by NuPhy Air, which is something in-between. It is great to type on, and I've spent almost last 2 years using it non-stop.