My bag didn't make it on the flight from JFK to LHR but instead of wondering where it was, I knew and I could tell the baggage services agent.
I watched it taxiing out at JFK and the next day, arrive into LHR. Just great.
When it was with the courier, I knew approx when it would be delivered and so I didn't have to wait in all day.
Sure, I was getting some SMS alerts etc but nothing like seeing where you bag is for assurance.
I use the AirTag because I have an iPhone. Tile and others work for Android etc.
