Yeah the keeping it on the centerline thing is fairly easy with no wheels, it's actually probably eaiser then with wheels. Now, the really amazing thing that I saw was he shut the engines down before he touched down saving the Props. The belly of most aircraft are designed to withstand a no gear landing but by him shutting down the engines he saved whoever owns that plane a lot of money to replace the props. Props are not cheap, not to mention if the props are spinning when you touch down chances are you would have to do a full engine and mount rebuild. I noticed he came in a little bit faster then normal so he could shut them down early in the flair. I'm not sure that I would have ever thought of that if I was in the situation. I was very impressed with the smoothness also, I would think the passengers didn't even know they landed except for the loud scrapping sound.
All in all, I was very impressed and whoever hired him to fly that needs to give him a raise.