Four Seasons operates around 120 properties worldwide, many of them very consistent in standards globally (even considering local markets). Invariably mistakes happen and will always happen, but I found service recovery always excellent.

I don't know when your stay at FS Firenze was, but they were probably mourning the loss of their very dear GM, Patrizio Cipollini. Max Musto just started a few weeks ago and standards should be picking up very soon again. Haven't been to Sayan in ages, so don't know what their status is. Any details what went wrong?

We had this discussion here before and generally I think FS faces a huge challenge to keep up service standards while expanding so rapidly, but they have been exemplary in their recruiting and hand picked all of their teams. Outside hires have been great, too. I wouldn't worry yet, maybe you just weren't lucky. Let them know, they do care.