I have watched it from start to finish...and it is boring.
He uses a few flattering elements in the first scene with the bathtub (low lighting, bubbles, lack of visual depth) to make his dick look somewhat formidable soft. When the lights are on and he has a fucking binocular lense on his cock, he screws that (marginal) illusion royally, lol.
That said, his girth is definitely above average, so I don't see why everyone's saying his dick is tiny because it's not. That girl trying to put on the condom was fucking retarded and made me cringe (even Dustin thought that was dumb if you listen). The man's definitely got some girth to throw around and a huge, though oddly misshapen, head. Girth I would estimate somewhere close to 6" around by the head.
Since he was never fully hard and he looked in some shots to be sporadically above 6" in length, I'm going to say he's probably somewhere around 6.5" when fully erect. Dustin's reportedly a pretty tall guy (about 6 feet), so that would look a little more average on him than if he were significantly shorter, as opposed to Colin Farrell, who's shorter but had better camera angles on his side (he looked about 6" long at best).
So in short, is he the 10" he claims he was? Not by a long shot! But I don't think he's ugly, and his dick isn't small. I think he's really annoying, an attention-seeker, and an egomaniac with nothing particularly good about him to back his own delusions. And his video sucks bigtime.