Neil's mashup works have a definite split between "technically interesting" and "enjoyable at face value." Some have both, but they are definitely the minority.
It's a great song even if you don't watch the crazy video and have no idea who Aaron Carter was. Put it on at a dance party and it fits in just fine.
Now take Wndrwll
It's certainly... interesting. You see him take a song and a modification of that song, and then attempt every variation. A pure "Variations on a Theme" of a technical meme.
It's interesting, but few people would say that they enjoy it outside of that technical appreciation.
I do, but I'm weird.