I've actually never been a tattoo fan but a few months ago, as I was looking for something a little interesting to watch on TV, I came across Ink Master and I've been watching the show from then on.
What I like in this show: some of the tattoos (flowers, realistic photos mostly-- I hate skulls, black and white, pin ups, old and new school tattoos) and the artistic and technical explanations from the contestants. I ONLY watch it because of these two aspects.
What I don't like: the drama scenes, the insults, fights, strategies to win, and Mr Nunez's behavior. Whereas Oliver Peck and Dave Navarro are rather fair judges (although sometimes a little politeness would be most appreciated), Chris Nunez is obviously only here to humiliate the contestants instead of purely sticking to his role as a judge.
As a conclusion: this show could be a really great one if Chris Nunez wasn't there and if the contestants were chosen differently. Some of them don't care a d**n about their 'art', they're just here to fight and make a fuss.