Overall, I am disappointed with the vehicle. I spend a lot of money the first 4-5 years repairing problems - what a piece of junk. While the car settled down in terms of repair after that, the repairs are again spiking as the mileage builds beyond the 200K mark; brakes, trans (again and again...), radiator, heater core, brakes again, cat. converter). While there are some good design features, mechanically the car is a design failure (my personal opinion).
Interior features, storage capacity
Stow and go seats (the newer vans now have), Better stereo/sound (better yet let me pick my own third party equipment), In floor and overhead (like airlines) storage compartments, A interior compartment for basic tools, a quart of oil, inflater, and/or other misc vehicle maintenance items.