Hmm, never heard that, always thought they were the best for younger kids who were larger as they were wider, taller, but also have the inbuilt harness so they can stay in it for as long as they need, as well as being able to be used with a H-harness and some other stuff once they get to the right stage.

Jazz also sleeps in it fine.

I'd also like to know where you are getting a $300 Maxirider?!?!?!