Overall, it really does what it promises. There are many reviews on YouTube if you want to see. Two things I distinguish in relation to other, similarly appearing products that you might find at a much lower price. First, the locking mechanism it has, if I remember correctly, has even won an award, is really very high quality. No matter how much you turn the keys, even if they are wedged, let's say, putting pressure on the mechanism, the lock does not loosen even a little. Where you lock it (to each their own, tight, loose, etc.) is where it stays, at least for the few days I've been using it and I've tested it deliberately.
Secondly, the back side for attaching, for example, a keychain with car keys, seems to be very high quality. For instance, I added and removed a lot of rings (which were new and very tight) until I decided exactly how and what I wanted to have on the keys, and they did not leave the slightest scratch, engraving/mark, or fading of the silver color.
Overall, I consider the price to be quite high, but in relation to what is available on the market, this particular design is almost monopolistic, so it has no competition. Essentially, you are paying for the very good locking mechanism + the fact that you can add other gadgets from the company like a multitool or USB stick, which are designed to fit side by side with the keys.
I believe it is something you buy once and keep for many years, so there is no reason to experiment with cheaper options that probably - even if they look the same - their mechanism will be problematic. Because as I said and have personally understood, this price primarily goes to the extremely well-designed and carefully crafted mechanism, and secondarily to the appearance or the small amount of leather they have on the strap.

That's it, and I hope I helped!