I sense a lot of Wifi-related error in that video from the Marth. I mean, he just about consistently killed himself at least once a match...3 times in the first one.
I watched the first 5 or so, and if I were going to say anything about your play style, it would be that it's very good, but you need to be a bit more careful off the edge sometimes. Now your BAirs off the edge to kick them back and your edge games are great...but I saw a bunch of deaths and gimps on your recovery that I think could have been avoided, some of which were taken advantage of, others which were not. Then again...it was Wifi, so I'm not really sure the point is valid.
...still way better then my sheik though...