Britax has lots to love. Except the price, lol. However, the Graco Nautilus is a great seat, too, so you might consider it, especially for traveling. It's slightly less bulky than the Frontier85. Also, if you travel frequently, you might check and see if a Ride Safer Travel Vest (RSTV) would be a good fit for your child. It's literally a vest, can fit into your carry-on (not to be worn on the plane) and then you thread the belt in any vehicle through it. what's even better is that it can be used with just a lap belt as long as you use the tether, so it's a really good fit for lots of different vehicles. I love ours. IT was so easy to travel with. If one of the sizes will fit your child.