Bests & Worsts Reviews from Amazon

My 20lb Main Coon loves these. He recently scratched his way through his third one (2 old style and 1 new style). It does take him 6-8 months to completely demolish one. Also, there's no difference between the new and old models except for the colors of the borders. He does move them and knock them over occasionally when scratching the bottom "legs" while standing on the floor, but they have never collapsed due to his weight or size. See pics.