So far nothing has been stolen from my bike ;-)

I have the set on a good middle-class mountain bike in Berlin in use. I feel much safer to leave my bike which are, as if I had just mounted quick release. The set also looks good and is easy to handle. I can highly recommend it really.
Of course I would never connect only to a wheel without the frame the bike anyway, but for casual and semi -Laufrad thieves the set should already be a healthy barrier. It is actually also only plan to the theft charge of quasi zero (quick release) to pick up a few minutes to let you go 99% of the thieves to the next bike.