Yep, the seals are mighty impressive for sure, many of the trips I've done my car is in clouds of dust from traffic ahead or what it kicks up itself. Up at the Argadells, mine was caked in dust, none inside, the Wrangler boys rolled all weekend without doors and roofs, they were filthy! Haha
If the dust is minimal, I do quite like having the sunroof open with some nice fresh air.