I have a 9 foot octagon and a 10 foot square umbrella purchased in the late 2000’s (08-09). I have loved them both. The older style rib replacement (with separate bolts for each rib) is my favorite way to fix them; one had some broken ribs from falling over in a storm; other than that, they are super durable umbrellas. I just wanted to share this. Keep making fine umbrellas! Your customer service has been great!