Oddly, at some point recently this property quietly went from Cat 5 to Cat 6. (Only the second one in Philly now, together with the RC.)
Rather strange indeed considering that, in my experience across weeks of stays in Philly, on many nights the Westin, LM, and even sometimes the Notary or Aloft can price out pretty much at the level of the Renaissance.
This could lead one to suspect that the redemption levels may be further "harmonized" in the near future.