I bought a Hori RAP4 Kai and felt the Hori buttons were a bit mushy. I swapped them for these and they feel just right. They've got more shape and form to the way the button depresses and springs back. I tested them by leaving some Hori buttons in and comparing them. The Hori buttons aren't bad but these are superior. The quality feels that bit better. I tested them by playing some games on MAME like R-Type, Truxton and I can fire faster with the same effort. I'm a light button presser, so when firing fast, I tend to have the button constantly depressed, allowing it to raise just enough to disengage the microswitch before pressing it again. A very high quality product.