The sound volume must be low for me to enjoy it, especially if I'm going to be in the room a while.
I can skip the sounds altogether - though I do enjoy it when it's well-done. Lately, especially on steam (most of what I do), when I upgrade to ERR, I have sometimes been skipping the RS installation. Just command and cruise and off we go. Steam, even more than diesel, just never seems to "leave the room" (and actually doesn't) and it gets wearying.
I'm also one of those who turns off tracks that are not being used - so no endlessly idling locos, which can get...shaddup, will ya?!
I think that some of us now have a "like/dislike" relationship with model RR sound, especially since the novelty wore off years ago. But, that's what volume knobs are for (I would like to keep the whistle/horn for some reason; the bell - don't care).