I actually purchased the Size4Me 70 but I did not see that as an option. The only difference between the Size4Me 70 & 65 is the max weight limits. I love everything about this seat Except for how difficult it is to get the harness straps tightened once your child is buckled in. I have a minivan and I literally step up into the van so I can get enough leverage & then I pull with all my might to the point of hurting my hands & even then, its not always tight enough! With persistence, I am able to get it to where I feel my daughter is safe but it really shouldn't be as difficult as it is. That is my only complaint. the quick click feature to the seat anchors is fantastic, the seat seems to be comfortable for my LO and I LOVE the recline feature!! No more falling asleep with her head cocked or her chin touching her chest! Most importantly, I feel like my child is SAFE in this car seat!!! If Graco can correct the issue of tightening the harness straps, this seat would be worthy of 5 stars!