The living room scratching post has definitely seen better days. Of course, it's still serving us well - the furniture is still like new (except for the puke stains, but that's another story). We've had some lapses, but mostly the cats just get sprayed with the water bottle when they horseplay on the back of the couch or climb instead of jump.
I'm glad that we gave their claws a chance.
...and I'm knocking the end tables as I type this!