I like it just fine. Works just as advertised.
I don't use it a lot, because I park all over San Francisco and don't feel the need for it most of the time. But when I use it, I do find it handy. I don't bother rocking it to seat the pin through the rotor hole... I figure that if anyone moves the bike, the pin will find the hole quickly enough.
I found an aluminum collar through which I dropped a large stainless bolt to hold it in place by dropping the bolt down the steering tube hole. Gravity keeps it there. When locking, I take collar off the bolt and place it in recess of the ignition switch as a reminder that the lock is in place.
