Well, I had my kerker done about two years ago. When i got it done WOW it looked like chrome. Now that I have it I think that chrome is way easier to take care of. I had it done used, so i didn't get the warranty and where it had barely started rusting prior to the coating it caused the jet-hot to peel really bad and start rusting. If I would have done it new it may have changed my mind. Heres the pic of it new. I dont have one now but its a dull shine and looks more polish aluminum then chrome now. But, it does dissipate heat a lot better and runs cooler. Which i wanted because I drag race a lot.
All in all if you have the time to polish it routinely it would probably look like new but you have to keep up with it.