I have a used Stages PM crank, Ultegra 170mm (grey). It’s in excellent condition, never crashed, no dents, scratches etc…
I’ve used it for about 3 months or around 60 hours of riding time and it’s still under warranty. Never had any issues with it, it works well and it’s been very reliable. It comes with the original battery which has plenty of time left plus an extra battery.
Pics here: https://www.dropbox.com/...auysj5z/raLbomzl_3#/
Price: $700 shipped (US)
If you’re interested, I also have a matching Ultegra FC-6750 compact 50/34 crankset 170mm Grey with a Shimano BB. It’s in excellent condition with about 1300mi on it. Pics available on request.