Not even Chef Thomas Keller is safe from the one-star throwing Yelp ninjas. There is but one single-star review of Per Se, but it's a doozy! Among other things, you don't have to know how to spell in order to afford to eat at Per Se:
The bread is hard and cold and I was afraid I need to consult my dentist if I had one more. I picked Stilton cheese off the tasting menu and they brought me Ricotto cheese - how is this infantile mistake even possible is beyond my grasp.