Wow.  The external speaker for your ipod means no headphones, and my daughter loves to groove too!  Nice handle grip and position - for me.  I can see where very tall or very petite parents might be uncomfortable.

Plenty of storage space.  Nice and stable, doesn't tip even when my 2 year old beats me to it and tries to climb in by herself.  Seems roomy enough that she won't outgrow it for a couple of years.

The air filled, bicycle type tires seemed like a good idea, and probably make for a nicer ride for her, but they are a pain in the rear for me.  They don't seem to stay inflated & the pump...