Had a VanMoof. The 'bike hunters' was worthless. The "GPS" is actually A-GPS which uses cell towers to triangulate the bike to within .5 miles...not too useful.
When or if you do find the bike on a facebook marketplace listing, the Cops and VanMoof do nothing. As they can't attempt to purchase the bike, and can only be engaged if they see the stolen bike's serial number in the public space.
The benefit was the insurance, where they simply replace the bike with a deductible of ~$100