I used a capsule with DD and she HATED it. She always looked hunched over and uncomfortable. She was also born just before summer hit, and I found she got really hot because of the higher sides.

This time we're going to use a reversible car seat. I figured we'd eventually have to buy one anyway, so why not buy one we can use from newborn, then there's no additional expense for a capsule as well.

I suppose it's a case of what works best for you as everyone is different.