The spot healing tool in Photoshop CS4 is not too bad if you're careful with the use, but it's still slightly clunky. CS5 however, has left our minds blown with its new Content Aware Filter that can add content by itself, easily fix the picture with just a simple touch. It cuts down on so much time spent fixing a picture that this feature alone is probably worth the upgrade. Don't believe us? Watch the video and be amazed.