Definitely get the rear air option. I drove one without at work for a couple of years and now I drive one with rear air and it makes a huge difference. It is so hard to keep the back cool. The heat does not seem to be as much of an issue though. Also, do not get the two piece mirrors if you can help it. They are terrible to see out of. Again, I have had both and the one piece mirrors are so much better. Sliding door vs. double doors are kind of up in the air. If you do not think you will be close to things on the passenger side the double doors will be fine. If space is an issue, go for the sliding door. I have had both of these as well and it seemed like the sliding door was built a little better to me, but it is heavy if you think you will be parked on many hills. Ditto on the locker, these things get stuck in wet grass. I do not think I really need to mention it but cruise control! Also, power door locks is so much nicer. I have had both. It saves you from having to walk around and lock every door. I think that is all for now.