In your honest opinion- are they??

I know all carseats have to pass safety standards so in theory they should all be "equal", but I have to be honest, I don't feel they are!!

We registered for the safety first onboard air ( http://www.amazon.com/gp/aw/d/B002TZA536). It's a bucket seat and retail was about $180, with our completion discount and a trade in coupon I think we paid about $120 or something like that... Anyhow I felt that the frame was much sturdier than some cheaper bucket seats, it's heavier and not flimsy. I also liked what I read about the side air technology and it did make me feel that my son would be safer in it. There were many features to consider and I felt this gave me peace of mind, a carseat wasn't something to skimp on, for myself personally.

Now we are at the point of transitioning to a convertible seat and spending another $200+ is stressing me out. We were actually blessed that by attending a carseat safety class we were issued a free carseat through the state. However it is THE most basic seat and I can't help but feel my son isn't as safe in this seat as he could be in another seat. The frame feels more flimsy than our bucket seat and other convertible seats, there is extremely limited padding and I wonder if DS is even comfortable, no side air impact technology, etc... I am wondering if I should dole out money for a carseat that is nicer and feels more safe.

Am I crazy? Is this free seat just as safe as a $200-$300 seat?

Do you think some of the more expensive seats are safer?