Diono RadianR100 is a great car seat for those who are looking for a car seat that will grow with your child from 5 to 100 lbs. We own the Diono RadianRXT, DionoR100, and the Graco Nautilus 3-in-1, and would have to say that the Diono is our favorite car seat for traveling purposes, but our second favorite car seat for everyday use (mainly because the kids like the Graco cup holders and armrests - more on that below). There are many things about this car seat that we love:

1. It's easy to set up and install. While I did need the instruction manual to figure many of the various parts and how to fully assemble the seat, the instructions were clear and the seat took no longer than 15 minutes for me to get set up in house, then another 15 minutes to get it installed into our cars. I did not include the unpacking time for the car seat from the box - that's just silly.

2. The Superlatch system is brilliant. With the Graco latch system, you have to shove your fingers... Read more

We have two Graco Nautilus chairs with which we are extremely satisfied, but subsequently purchased the Diono, which is also great.

The key selling point for both the Diono and the Graco for us was that we can buy one car seat to last our kids all the way to 100 pounds. Otherwise, you end up buying several as they outgrow the different ones. They both work very well for that and have served our kids well from toddlers to little kids to bigger kids.

Admittedly, although we have three car seats to last the kids all the way from birth (for the Diono not the Graco) to 100 pounds, we prefer the classic Graco (or other brand) SnugRide for when they were very, very small because they can sleep in the bassinet, which just clips into the car base that is permanently attached to the car. Very easy to move them into or out of the car without awakening them. However, they grow out of those pretty quickly, then the Diono (or Graco Nautilus) is great because it works when... Read more

I have bought three of these carseats! My husband drives a Toyota corolla and whew we're able to put two of these carseats in the back along with an infant carseats and they all fit. No van for us! There's literally no more room but they are all safely and snugly fitting in there. The third carseats was for my jeep patriot. I already had a normal toddler seat and an infant seat so I only needed one to make it work there. Overally, nice product. I'm happy with my purchases.