I contacted them in July and my first appointment was on Oct 26. It was harder for me to get in because we had to find times that Kore and Brenda both had openings. My wife was getting tattooed by Brenda at the same time. I just finished my first project with him last week and I'm already heading back in April to start the next one.
If you like what Kore does, I would not miss a chance to work with him. As great as he is as a tattooer, he's even a better person. You will know what I mean when you meet him. BTW there is an interview with him here on the site if you want to get an idea what he is all about.