Used it on my outbound leg just fine, but coming back on a non-stop, even after cinching it tight, it appears the tag came off my bag and it missed my flight. Got the bag back the same day, sans electronic tag, but it’s not a great sign if these things aren’t as reliable as paper versions. At least my info was on the tag, so maybe I’ll get it back. Would be pretty pissed if I’d paid money for the thing.