I know plenty Tims who don't rate Miller- with the quality they have in their (massive) squad it's not as if he has to even be a decent finisher, just the ability to put away one or two of the many chances that are laid on.
It's pretty obvious to me that Kenny Miller's career has already peaked- either when Rangers signed him, or Wolves. If he was any good he would still be playing in the Prem. I can actually remember when Hibs farmed him out to Stenny. His two goals, both earned by his pace, were the only difference between Stenny and non-League Whitehill Welfare in a cup replay.
Having said that, I'd sign him in a flash.