You feel the weight the second you pick it up — not something you forget you're carrying, but honestly that's reassuring for security. The 4ft length's been clutch too, gets around bigger posts and racks with no issue.
This chain feels substantial and gives real peace of mind — the 4-foot length is great when there's no rack nearby, and yes, it's heavier than a cable lock, but that's expected for this kind of security.
I commute regularly and lock my bike up in different places throughout the day. Having a sturdy chain lock like this makes me feel much more confident leaving it unattended.