The antenna wobbles and vibrates extremely when driving, so that the reception usually breaks off, if you set the car in motion, unless the signal is really very strong on.
Get me 2 stars, because I'll probably still be used as small APRS second antenna ...
Tip: I've now bought the Diamond MR-77, is almost as small and unobtrusive, but plays in a different league ... Conclusion: At least 30 EUR should spend even for such an ante Nchen ...