I really like the ability of the vacuum to be flexible and get in hard to reach spaces more efficiently.
 I also like how easy it it turns into a handheld vacuum. If I were to change anything it would be moving the cord. 
The motor and cord come out of the top of the vacuum making it top heavy and kind of awkward. 
I think moving it would make this machine go from a 4 star to a 5 star product.