They’re generally regarded as the best chain on the market. Very heavy so you probably wont want to carry it around with you. Combine it with a decent ground anchor.
They’re the best chains you can get, we completely recommend them. A number of us use them, and we wish more did so! You get what you pay for. I can’t recommend them highly enough, they’re the only chain that can’t be bolt-cropped by hand (the weapon of choice for thieves).
I carry mine round with me in the Motrax tailpack they chucked in for free . . .1.5M is good for lashing 2 bikes together, the limit for carrying around and slightly too long at times for domestic wheel>groundanchor as a 1.5M too easily lays on teh ground