I purchased two of these seats about two and a half years ago when my 15 month old twins outgrew their carrier style seats and were ready to be forward facing. I had actually been looking to purchase something else, but it was unavailable when I went to buy, so I bought these instead, I am so glad I did. I have always felt my girls were secure in these, and they have grown with them nicely. My now three and a half year olds are at the top slot, but I am pretty sure that will be good until they turn 4 and can use the seat with a regular shoulder belt, they are very tall for their age, but it seems this will continue to work. The cup holders are a great addition, my girls love having their drink, snack, or toys close at hand while they are in the car, but they do make the front of the seat a little wider which I found can be a little problem when you try to put 3 seats across in a vehicle as I have to do now. Ease of Installation It is really not any more difficult then any other seat on the market, but I hate putting seats in, so I have to rate it a little low. Child's Comfort Has been great for my girls. I love that the straps can tighten and loosen without taking the seat out. Support and Safety I have never had to test the safety of it myself, and hope I never do, but it seems like it does it's job well. Ease of Use Never had a problem Durability The only thing I have faced is the fact that the Styrofoam on the upper head rest is put on with a plastic pin, but not glued down, When I had the cover off to wash one time one of my girls pulled on this piece and broke it off. We were able to glue it back in place, but I wish this would have been thought of while they were designing it.