The air quality here seems pretty good. I work right on Morena. If you’re as close to the 5 as I am, there is traffic noise, however. Most of the time I ignore it — it becomes white noise after awhile. But when I’m on the phone, I usually have to shut the door. I’m not sure how high up on the hill you have to go to avoid this. I’ll test it, though, when I get a chance.