First impression? This lock feels like it belongs on a bank vault. The weight (2.2lbs of German-engineered steel) instantly communicates 'don't even try' to would-be thieves. What surprised me was how smoothly the shackle glides - no awkward jiggling like cheaper locks.

Real-world test: Securing my motorcycle in NYC. After 9 years of sidewalk abuse (rain, dirt, even snow), it still works flawlessly. Pro tip: The removable shackle is genius for cleaning - just blast dirt out with compressed air when needed.

The illuminated key isn't a gimmick - the replaceable battery/LED makes midnight lock checks actually practical. And that satisfying *click* when turning the key? Pure mechanical poetry.

Warning: This isn't for casual use. It won't fit standard storage units, but paired with my Pragmasis chain, it creates an anti-theft system so robust that NYPD officers have complimented the setup.

At $14/year (and counting) of theft-free service, this might be the most cost-effective security investment I've ever made.