As stated, the knife has a decent heft to it. This is usually great for me, however the spring that deploys the blade is both noisy and subpar. It clicks and strains obnoxiously when folding the knife, and when deploying, it barely seemed to push the blade out enough to lock.
After loosening the pivot screw slightly, the action improved. However due to the noise and the overall weakness, I ordered a strong spring from a different website.
Even with these issues, I would happily buy this knife again. Despite my review sounding very negative, I am overall pleased with it.
In the attached video, you can hear the spring groaning, along with the blade not fully deploying when pointed up (ie fighting gravity). Loosening the pivot screw helped with the action some.