We sailed on Golden Princess last spring and experienced rudeness from one server when we asked for tea instead of coffee (at the afternoon tea). One person at the front desk was very abrupt but all the others were pleasant. We also had some problems in the cabin which the steward said he would get repaired but we ended up having to call the front desk ourselves to get it resolved.
We were surprised though as Princess has a good reputation and we have never experienced this on any other cruise line.
Anyway, it wasn't major and it certainly didn't ruin our good time.