Ease of use
Baby loves this.
It's easy for her to hold and it didn't take her long to workout how to start the music playing.
I like that it takes three presses to reach the full melody (each press adds another layer of music). It's not too loud either which is good for everyone else.
The wings have great texture and for some reason baby loves the ribbon eyelashes :D
It's great quality and has been easy to clean so far without damaging the toy.