The shoes fit my foot perfectly. I use G8 inserts. Size 43. I was using Mavic Cosmic Ulitmates in a 43.5. They were a bit too narrow for my right foot. Durace cleats mounted up without issues. I like to run cleats as far back and in as they can go. As for how cool they are I will have to wait a few months. It does get hot in Texas. I will prob buy another pair or two in case they decide to make improvements in the future.