Had this since August of 2019; installed within a week or two. Loved it, until this morning, when I tried to pull it down, and something popped out. Turned out to be the endcap and some other random plastic fragment (second pic). It popped off, and the spring has disengaged. I'm a mechanical designer, but I'm quite sure this is an unrepairable failure. Not really accustomed to buying disposable products for nearly $150...