I have a VanMoof bike with both a GPS and a Find My tracker.
The first time it got stolen in Berkeley, I recovered it. It hadn't gone far, so the police were able to locate it and the thief.
The second time it got stolen, I couldn't recover it. But I had already bought the Peace of Mind coverage plan, so VanMoof replaced it — and lent me a bike of the same model in the 2 weeks it took to deliver.