What do you mean by leather/poly blend... we bought a set that wasn't real leather & it peeled from normal wear & tear! If it's NOT 100% leather, I say don't buy it! As for the cat... they're great, but I can't stand clean'n up after them lol If you do buy leather, get the additional 5yr warrenty - it's suppose to cover any accident (be sure to ask them if it covers damage by cats).