Where are you located?
I bring mine to California Detailer:
http://www.californiadetailing.com/
I went there based on some research I did online. I figured anyone with this much positive feedback had to be good:
http://www.yelp.com/...g-san-francisco
I dealt with the owner (Jim) and loved his enthusiasm and customer service skills. Their prices are very high, but the quality of the work was amazing. They put pure love into their work. That's the best I can describe it. The paint on my car felt like silk and the wax they use (same wax used for Gulfstream airplanes) seems very durable.
Tell him his first GT-R customer sent you and he will treat you like royalty. I sent him a friend with a 30 year old Rolls Royce convertible who said he didn't even know his car could look that good again.
Just be careful going up his driveway. Our car comes within a hair of scraping.