I bought a pair a few weeks ago from Oakley itself when Sunglasses Hut had a 30% off sale, Oakley match so was about $200.
Just checked my phone and a Google card popped up about a price drop for items I have been searching, clever Mr. Google.
Myer has Oakley Two Face sunglasses on sale for $192.46 normal price at Oakley and Sunglasses Hut etc it $275. $192 is a great price.
I have never bought Oakley before, needed to replace some RayBan sunnies I accidentally ran over when reversing the car a while back. Very comfortable sunnies, the lenses seem great.
Oakley lets you try out the sunnies for a month and you can return them if you don't like ( I guess swap for a different style). You can also buy replacement lenses if you need. Warranty seemed good.
I love Oakley's. I literally have 4 pairs of Oakley Sunnies and 3 Opticals. Oakley make RayBans except their genuine lens for Oakley are better quality. Warranty as you mentioned is really good. I've had my Oakley Kitchen Sink fully replaced after a pocket fell apart after a years use, one of my Oakley frame arms fell off after almost 2 years and they replaced the frame immediately.