The weather has been back and forth between 0 and 60+ degrees here in Denver over the last few weeks. At anything above freezing, my tires are fine (I filled them to 35 psi on a day when it was 60 degrees). But when it's below freezing in the morning, the alarm goes off.
What I'd like is for the light to come on, but not the alarm. Sure, it goes away after a few minutes, but it's annoying.
I did get a flat tire once on a dirt road (a huge antique square nail) and it was nice to have the warning then, but the dashlight would have been enough.