His problem is not that he's over-rated - I think he's actually a very sound and moreso musically knowledgeable guy...It's just that he's bred a genre of DJ's that play records that are great individually, yet with little or no variation, all to the TOWIE crowd. I've heard it called 'trendy baseline' house and it pretty much sums it up.
Take that Disco Gnome record - it's ace on it's own, tho sandwiched between 4 hours of the same slow baseline driven stuff with the ubiquitous distorted vocal snippet and it's really grating.
Crowd wise It's (the Hot Creations sound/crowd) is in no different place to where SHM were 4 years ago.