Excellent for its price, it has a quality feel, good investment, and easy to put on and take off daily. It's worth it!

For its price, it is good and functional.
- When folded, it does not leave gaps for a cutter to cut the wire rope inside (a common weakness of many cheap locks). There might be a problem with the first/last link over time (test the piece you will receive).
- The key is "peculiar" (four sides like a cross) and cannot be lock picked (of course, you cannot remove the keys, it has two and those are it).
- The mechanism is ball-based (basically a cylinder) without springs, I would say it is relatively good (the key needs to be inside to lock it). It is made of brass and does not rust.
- The joining point is thick and cannot be cut by regular bolt cutters (although there are more specialized cutters for chains, but they are rarer).
- The plastic turns yellow in the sun, but it will take a few years before it becomes brittle.

Apart from that, even though it exceeds the "you get what you pay for" principle by far, it is not excellent. I have seen better ones with thicker links and better welding, but they cost around €60. Personally, I use it for my bicycle in a fixed location (I don't carry it around). We try to position the lock at a height (so it doesn't touch the ground).

For a motorcycle, I would get a better one, preferably with a pedal and/or disc brake with an alarm.