If you haven't seen any of the tutorials on Adobe's site, I suggest you check them out. Plus, I'm not an experienced PS user, so if you have experience, you'll be able to get better results, I'm sure. The big point about this new tool is that it saves a ton of time. I'm sure you can get the same or close to the same results without the content aware function, but it would take a LOT longer to manage it.
I'll find another photo later and do some stuff and post the video screen cap. I only used the clone/stamp tool to do those, but I've seen others using the lasso tool, and I don't know how to set that up. The lasso tool would be a lot more efficient under certain circumstances. Like, for cloning people or larger objects out.
Doug