Well, I was going to order this deal, until I found out that shipping almost doubles the price.
But here's the good part -- about an hour later, I went to Half Price Books. I looked through the PC games section just out of curiosity, and lo and behold, there was the PC version of Prince of Persia staring at me, for $7.00. It looked like one of those games that HPB orders for itself -- meaning, there's a good chance you'll be able to find a copy for the same price at your Half Price Books, if you have one.
I already have the game for Xbox 360, actually I just beat it a few days ago. I liked it so much that I picked up the PC version at HPB without question. If you like a game that provides a real "experience", as opposed to just difficulty, then I highly recommend this game. It's one of the most artistic games I've ever played, not just in its visual style, but its audio, atmosphere, and characters as well. I think much of the impressions expressing lack of difficulty stems from the cleverly disguised checkpoint system. Yeah it's easier than the previous Prince of Persia games, but that doesn't mean you won't fall to your would-be death multiple times throughout.
There's one more reason you should buy this game.
It's DRM free. Ubisoft ran an experiment of sorts with this game's release. They wanted to see what would happen to its sales if they left DRM out. While they never publicly announced the results of that test (as far as I know), they have stopped putting DRM in their games... so you can guess what the results were