My experience was that when I first test drove the Sportage, it was a lot whole lot different than the 2002 predecessor. The exterior was a little bit more taller than the 2002 version. The interior was even nicer than the old one too! Below the front passenger airbag was some kind of handle bar just to hold on to.
My favorite features include 6 airbags, keyless remote with panic button on the EX model, and a Trip Computer.
I don't think that this Sportage needs any improvements at this point and time.