Hello,
We have it! Got it when LO was about 11 months old. The bumper isn't too high, LO rests his arms on it quite comfortably. The first couple of times he tried to push the bumper away when we put him in, but now just raises his arms and lets us buckle him in. He falls asleep really easily in it and looks like he loves it! It's really lightweight and portable if you need to put it in another car.
Any more questions just ask!