Pros: Very comfortable, good venting, lightweight, warm enough for most conditions
Cons: No "on the fly" venting adjustability, tons of people have them
Great helmet. If you don't believe me, go to roughly any ski resort in the the US - it's still probably one of the most popular helmets out there. And for good reason. It's lightweight, has a great fit, nice venting, and most goggles mesh perfectly with the cut. It's actually more comfortable than just a beanie and goggles. It's pretty warm as well, but if you wear a thin skullcap underneath it's basically warm enough for anything. I also recently got the TuneUps kit for it, which has worked great as well. Sure Giro has the G9 out now, but if you want a cheap helmet you can find the Nine.9 for under $50... and it's still a great way to protect you head.