I enjoy dining at Four as it meets my needs (and the needs of others I dine with). Normally the food is great, on this occasion, it was okay. The person I was dining with had one of the entrée chicken dishes and thought it was good, mine (which I have order many times before) was different and very acidic. Without hesitation (and without me asking) they remade the dish and it was still not the same that I had come to really enjoy.
So my learning from this experience, is even great restaurants have off days, but I will go back again.