Okay, so I finally got my hands on the Kryptonite Keeper 785 after my last bike got stolen (RIP). First impression? This thing is CHONKY. The 7mm steel chain feels like it could anchor a cruise ship, and that rubber coating is a nice touch to keep my bike's paint job intact.

The locking mechanism had me sweating for a minute - that first key turn was stiffer than my morning coffee. But after some WD-40 and a week of use, it's smoothed out nicely. Pro tip: register those keys with Kryptonite's Key Safe Program immediately unless you enjoy panic attacks.

I've been using it daily for about three months now through rain and shine. That weather-resistant sleeve actually works - no rust in sight. The chain length (2.8ft) is perfect for securing my bike to most racks, though I wish it had another inch or two for those awkwardly thick poles.

Security-wise? Let's just say if a thief wants my bike bad enough to cut through this beast, they've probably earned it. The disc-style cylinder gives me peace of mind when I'm grabbing lunch downtown. It's not Fort Knox level, but definitely makes my bike the least tempting target on the rack.

Only real complaint? The weight. At 3.5lbs, you'll definitely feel it when riding. I've taken to wearing it bandolier-style like some post-apocalyptic bike warrior - gets weird looks but hey, fashion sacrifices for security!