I do browse on Google Maps from time to time, and I do see areas with similar-ish density. I also see a lot of cars. I've known a few people who have lived in such places, and they say their transit is near useless (poor service intervals, limited hours, doesn't go everywhere, etc) and most people drive if they can. Which will be less than in the US, as operating a car is often considerably more expensive there than here, tipping the math towards just accepting the poor transit service.

Which is why I was curious about specific experiences.

And I do say, better than many US suburbs which have absolutely no service at all.