I sent a F100 to Nikon to CLA, with no issues mentioned, and they did a nice job returning it like new, focus screen replaced, rubber grip replaced, etc., It was quite expensive (298€), but we don't have Nikon services here in Portugal, so it went to Nikon Spain. I found it a very good job done. This year will send my D90 (2years old) to CLA, and then my D700, with no hesitation.
P.S. Sorry we miss to meet in Boston last year. I owe you one. Let's see if i can make it this year, in my annual trip to US.
Nikonians!!! My best investment made after my camera!!!