Suggestion, a seperate volume level or even a mute option for pet noises / sounds. I play a necro mainly and the low throbbing hum of one of the pets really gets irritating after a very short while. The others arent bad, but you cant turn them down without losing out on a lot more important sounds.
Also, some kind of visual indicator for when your pets are in combat with something would be handy (yes, thank you mr. flesh golem for running 100m away and aggroing something for me….) Your weapons being out doesnt always mean that, as it takes time for them to sheathe automatically.