I have 3 Diono carseats, one RXT and two R120. I absolutely love them. My kids are 5,3 and 1 and it was the only ways I could fit all 3 in my Toyota Corolla. They have plenty of room and I have never had a problem getting any of the kids in or out. Actually installing the carseats were a bit of a challenge but I think it's because there are three. The seats themselves are so heavy. With two you would have a lot more wiggle room. Go for it. They are well worth it.