I would (and did) take the all aluminum frame over the one with carbon stays just because the aluminum version is worry free as far as durability goes. I don't know why everyone is freaked out about the integrated headset, it works perfectly fine and if anything it's more durable than using a normal headset. I've seen numerous aluminum frames cracked at the headset and they all had normal cups. Just saying. I bought a cane creek and it's been flawless since day one. Yeah the frame weighs like 1500g but it's stiff enough and it's practically free.