We used it on Wednesday.
All looks good from here; wasn’t sure how it would play out or if it would cause issues, however… all went on without a hitch, sans one weird thing:
The only bug I saw was the distance to finish on the event was wrong; it extended ~2 miles beyond our finish line in Paris; not sure what that was about, or where it actually would’ve ended up, however the finish line was the correct lap marker.
From the finish line, we set a 10 minute cooldown. Once you cross that finish line, your 10 minute starts (if someone else crosses the line 10 minutes later behind you, your 10 is up, and theirs is just beginning FYI; for lap/distance based events.) That may seem obvious, but it’s hard to say if the 10 minutes is 10 for each user, or 10 from the first person finishing on a distance/lap based event.
Once you cross the line, you’re given the option to leave the event, and review the results.

Final results sometimes take 10-15 seconds to display, but no issues were seen on my end.
The ‘neat’ feature about event cooldown, is yellow beacon can still see your comments, and you can see them across the center of the display as if you are still in the ride (because… you technically are.) As opposed to being spit out to the public world and waiting for others to cross the line to say your goodbyes, or what have you.
All in all, a nice little feature for rides where the riders like to stick around for a little while longer, but still also “complete” the event for unlockables etc.
A final note, is event cooldown did not seem to break ZPower, nor dual recording feature within ZP either, so all good there from my test.
So only bug is that finish line distance seems to get jumbled, which I sadly do not have an image of.