The City Mod Installer is really such a great tool! I found a few game changers for me that were wonderful are
I can hear the glowies way better..the sound is louder, but has a pleasant bell sound instead of a sonic buzz. (Double Loud Glowie}
Dulling the annoying sound from hitting a power key when it is recharging. (Powers Recharging Less Annoying SFX Sound)
Portal at the Portal Corps are not loud and headache inducing anymore (Portal Corpse Quieter Portals SFX Sound)
Improved flying sound (Flight Realistic SFX Mod)
readable signs for the base portals (Base TP Beacon Labels - Issue 27)
assorted other mods that quiet things like pulsing quills, Arctic-Air, hasten pop-bang, lightning field, etc.