Yes, we get used to it, not unpleasant for me, at all.
But it changes the way you live. Compared with lives of friends from Europe, I notice that theirs has a bit more of a "structure" and predictability. E.g., hang out more in the summer, doing more reading and writing more in the winter.
I think I would enjoy that. Of course I could plan my life based in months instead of seasons, but it's not the same, especially considering that people around me wouldn't be following that same plan.
Consistent year-round temperatures is something I thought I'd want right up until I experienced it for a while. Turns out I like having the variety of seasons. I love snow, but not all year. I love the leaves falling, but not all year. I love Spring thunderstorms, but not all year. I even love 110F heat waves, but I'm glad when Fall arrives :).
I grew up in the Midwest and lived in SF and LA for a few years each. I definitely missed the seasons changing and appreciated them even more moving back to the Midwest. Lack of seasons really messed with my sense of time, like: "Oh that thing we did last month...oh woah that was six months ago??"
It does sound kind of unpleasant, but I imagine you get used to it.