The crew at Overclockers Club have put the finishing touches on their review of the Corsair 300R case. According to the review, the looks of the 300R are somewhat deceiving:
Testing the 300R I was a little surprised. I expected some high temps but I was actually baffled by the results. I honestly ended up running it an extra hour through after the initial hour of testing. The CPU temp at load was remarkably low. It was the lowest I’ve seen in all the cases I’ve had through this year.