I bought one of the original V500 keyboards for $40. It's not the best build quality in the world but for a travel board it isn't bad. Kailh Yellows are the same as Kailh Reds, but when these were originally manufactured, Kaihua was not yet manufacturing the Reds. The Yellows are now discontinued. I really can't complain too much for the price. I don't know about the stabilized keys as I haven't tried replacing them yet, but the rest of the keys are standard size and will be easy to replace. For those asking, Kailh is 100% compatible with Cherry switches so you can replace switches with Kailhs, Cherry, or any other Cherry clone like Noppoo, Gateron, Greetech, Outemu, etc.