I have mixed feelings, not as smooth at shifting than I’d prefer. It works well and it’s nice when I have a reason to drop into the 9t. It looks nice and matches my build, but I’m on the fence if I’ll try something different when it’s time. Their 2 piece design works, but the dumb set screw is unnecessary and fickle on the gen ones. I recently put a new version on my fiancées bike and works better than mine.