haha... devil's advocate: the sad thing is that you really don't know if she was bing honest or if she went there expecting to be treated special and wasn't.
I can't tell you how many times I've had horrible customer service, or lousy food, only to have a few other people claim they've "never had a problem there". And places I have never had a problem were lamb basted by someone who could very well have instigated their unpleasant visit. Who do you trust anymore? Apparently you can't even trust that Guy Fieri dude, either.
Personally, I think to be really objective and honest is to do the three-strike rule. Eat there a couple times, if you're willing to go a third time, give them a great review. If you can't see yourself going a third time, now you have two prior trips to back up an honest, and negative, review.
Now if I can only find a column that wants me to do this....