Yeah. I got upgraded from a Jazz to a C180 by Avis, earlier this year. Drove it for a week. Very nice car. Fell in love.
Weight won't be a problem. No family yet... Only 2 of us. Maybe a couple of bikes on the roof. I don't really want to buy second hand. If the Jetta's ride comes close to the C180, I'll take it.
Haven't driven a Jetta in quite some time, but if it's anything like the Passat's ride, it's nice and firm - quite like the BMW.