It's just so garish and ugly in a great way. Would have on my wall.

Laughed super hard at Mitt's pearly whites. That deserves a high score on it's own.
Not sure if it's intentional, but I personally like the cartoon suit clashing with the more careful painting. Definitely looks like him, worth a laugh, and just a great caricature. Not sure why the piece is rated so low, I guess it's like marmite.

As said in the thread, love it. Great concept, great style.