The staff at the Hotel Pierre are one of the very best things about it, that and the location and the charm! We were a 2-minute walk to the Duomo, the Ponte Vecchio and the Arno, to the leather district and the Christmas markets, to Santa Croce. Our room was charming and lovely, and the housekeeping staff was a daily wonder. We loved the morning breakfast in a stately dining room with beautiful views of the bell tower. Also a favorite was the simple bar in the lobby at cocktail hour. Be prepared that each room has only one key (old-style) which they require that you leave at the desk whenever you leave, so if you have multiple parties going out at night and coming home at different times, people just need to coordinate. We quickly got used to it.
We will definitely stay at the Pierre again and again.