It is one of the top disc brake locks but the price is extremely prohibitive. Minus one star because the alarm has quite a low volume, which is unthinkable for this amount of money.

Very sturdy construction and seems like a reliable choice. However, with the first lock on my bike, the entire pin with the key remained in my hand. It was definitely a material failure. Big disappointment. I returned it to the store, filled out the return form, and waited for a response from Spain. To the store's credit, within a week it was replaced with a new identical lock. We said these things happen. However, the new lock from the beginning locks and unlocks not so smoothly, to the point where it gets stuck. I will go back to the store because I believe there is something wrong with the product; I don't think I am so unlucky or so inexperienced that I don't know how to unlock a lock. With cheaper, non-comparable products, I never faced such issues

Very sturdy construction. Loud alarm.
One of the best locks I have encountered and I highly recommend it!
Once, when I wanted to loosen the rear axle, I used it as a hammer. The axle unscrewed and the lock was not damaged at all!!!!

It is perfect. I regret spending money on an alarm. If they want to steal it, a simple alarm does nothing. At least with this, it will delay them. There is a video on YouTube which is one of the few that can't be cut. Plus, it also has an alarm that actually goes off.

Very good lock. The alarm works very well, at the first shake of the bike it makes 6 low-intensity beeps and if you continue shaking it activates at 120 db.
It has a very convenient carrying case. It's good to regularly oil the cylinder.
You put it on the disc brake, press the cylinder in once, then immediately again and turn the key, so the alarm is activated

Flawless and very sturdy construction with a smart alarm, it detects even the slightest vibration without being affected by annoying external noises. Definitely prevents. Worth the money.