I have the full ghost armor on my phone and i like it. it does have a 'rubbery/plastic' feel, but that is too be expected when you put a 'rubbery/plastic' ON the phone.
the kit they sent for the Sprint version fit really well. you just need to make sure you do not stretch the top cover too far over the edges -- like me. that will cause the sides to overlap. (my fault. user error. not the armor itself.)
if you're looking to have a phone that feels pretty then i would not recommend the armor. if you want a phone that still looks good and is protected from scratches/dings, then i highly recommend ghost armor.