Mice absolutely freak me out. Ants are a fact of life everywhere I've lived, pretty much; someone not even trying to get rid of them would bother me, but I've had invasions wherenothing I tried worked at all. Roaches and kitchen moths, my reaction would depend on how pervasive the invasion was, where (geographically) the home was, and whether it was being countered.

A roach floating in a teacuup is beyond the pale, whether they've had the exterminators in or not -- I don't want to drink bugs OR pesticide!

The previous owners of my condo left behind an ultrasonic pest repeller, and the only bugs I've had are a few spiders, things that clearly came in from outside with me (i.e. I opened the door to come in, and they flew at the light, or cool air, or whatever), and termites.