Decent ladder and very but sturdy.
I'm 200lb and used it full extension and was very stable.
Locking system is unusual but not bad once you see how it will lock
I would recommend not slamming hard when adjusting sections because the spring has very thin metal about the size of a small paper clip maybe but should hold up OK (I hope).
I would recommend when you get to the area to lock just closed gently but then make sure the lock pin fully engaged.
When you unlock to adjust if you move it quick it will pass by other lock areas and completely fold so you don't have every section locking as it passes.
All and all for the $75 I'm well pleased!!