As French Laundry seems to still be one of the ultimate destinations for serious eaters, I thought I'd share my experience there in order to possibly enhance yours, if you finally decide to cash out your IRA and go.
French Laundry was solidly one of the best meals I have ever had. Only problem was, I expected it to be. So it met, but did not exceed my expectations. So keep your hopes realistic, they're only human.
(BTW, Keller (who may or may not be only human) was not in the Kitchen that night, as is probably often the case.)
Beware of eating too much too soon. Keller has a Foie Gras philosophy that could be summed up as "don't skimp!" and they didn't but we were beyond full before the mains arrived.
If the Snake River farms beef is still on the menu when you go, watch out, becasue mine was oversalted (one of their few missteps).
Lastly, don't be intimidated by the circumstance. In a fit of compliance, we all four ended up with much the same tasting menu, which of course is foolish, as we didnt get to try various things.
So, now advised, go if you can afford it. I've never spent more on a meal, and may never again, but it's an amzing culinary experience.