My cat had the same scratching post for 14 years, it's pretty much been totally destroyed in that time. I'd bought her 4-5 replacement ones over the past few years but she wouldn't use them and started using the sofa or carpets instead so I always ended up getting the old one back out again, at £20 odd a time for new ones that she didn't use, I was getting a bit frustrated.
This one is perfect, it's exactly the same as her original one (quite by chance) and she's happily used it since the day it arrived. Seems sturdy enough to me, easy to put together, it's the perfect height for her to stretch her legs while using it, cat is using it and seems happy with it, therefore I'm very happy with it too, great value for money considering the price of some of the over the top posts you get in the shops. Couldn't really ask for more, thank you.