Let me start by saying this lock feels like a tank. The 17mm shackle and zinc alloy core give serious peace of mind when leaving my e-bike downtown. I've had cheaper locks cut before, but this one's resisted multiple theft attempts (visible saw marks prove it!).

The included 5ft cable is a game-changer for securing both wheels. However, the U-shape is surprisingly compact - I struggled to lock my cruiser's front wheel to thick bike racks without the cable. The silicone coating is brilliant though; zero scratches on my frame after months of use.

Installation took 30 seconds - the bracket fits standard tubes perfectly. At 1.64lbs, it's heavier than minimalist locks but balances well on my bike. Pro tip: Keep both keys handy; the mechanism gets stiff in heavy rain (though never failed me).

Minor gripes: The mount only works on seat posts (annoying for frame-mount folks), and thieves did cut through my cable once (the U-lock held strong). For $30, it's outperformed locks twice its price. Just mind the size if you have bulky bike frames.