We hired a 50cc Vespa for a day. Everything went very smoothly; it was easy to get in touch with the owner, he was very responsive on WhatsApp and we didn’t encounter any problems. We were able to make the return journey from Anglet to Hendaye without worrying about the fuel level, and the scooter is quite comfortable over short distances.
(However, it would be nice to have hairnets to wear under the helmets for hygiene reasons...)
I’d definitely recommend it!