I have absolutely no complaints about my Pro (Both .40 and 357SIG barrels), but I certainly respect the 226 and seem to shoot better with it.
Maybe I just haven't seen the light, but I don't really consider the lack of a takedown lever on the Pro to be particularly much of a disadvantage. At least, I've certainly never had any difficulty in either taking mine apart or putting it back together.
WRT "If you want a Polymer, get a Glock", it's not that valid. Just as I respect Glocks as being fine weapons, I don't like them. I don't like their balance, I don't like their safety features, and I don't like the way they feel in my hand. SIGPro has merits that Glock doesn't, just as Glock has merits that SIG doesn't. It's a case of user choice. Would you prefer BMW or Audi? Entirely different characters.
226 or Pro is a common question on Sigforum.com, the almost universal answer is 'both are equally good, one is just less expensive: Try them both, and see which you prefer'
NTM