And the skill of knowing your customers and attention to detail. My (now-ex) wife and I ate there. She does not eat seafood, and requested her menu to be adjusted accordingly, which they did. However, when the amuse bouche came out, it had cavair on it - maybe 5 or 6 eggs worth. The waitress noticed it when she sat it on the table. "Oh my, I am so sorry there is seafood on that, I will have it corrected!" My ex tried to convince her that it was no big deal and she could simply move the cavair to the side, or she might even want to try it. The waitress would hear nothing of the sort. She removed her dish AND mine, had them both re-done, so they both came out at the same time at the right temperature, and since I had drained my wine glass while waiting, that was refilled on the house as well. After the meal, we got to go into the kitchen to meet the chef, and HE apologized as well.
That is the level of service that is there, and the efforts they go to in order to try and please a guest.
-dave