I know its an old thread, but...
The one in Lincoln on S. 56 & HWY 2 is pretty good. Dale has been there for almost 10 years and puts her foot down and before that, she trained sea lions in New Mexico, I think. Its not as good as some LFS, but better than others (not Petco LFS, that is).
That said, I've got lucky with an occellaris I got at 48 & O, and from her, I've got 2 cleaner shrimp (one was sold before we moved) and now my YCG. Had the shrimp and YCG for a couple weeks and they're both doing really well so far.