The strap I received was beautiful and looks as-advertised on the website, without a doubt 5/5 in my opinion.
The reasons I removed a star are due to imperfections in the hardware, resulting in a product feels not quite premium despite the luxurious beauty of the strap. For one, the Apple Watch adapter on the strap does not fit quite perfectly on the watch, resulting in the fit being slightly loose and giving it a bit of a jiggle (the adapter is of the correct size; think ~0.5mm of jiggle as the adapter swishes side-to-side). As the side of the adapter can be a little sharp, it has gotten caught on my clothing more than once. More importantly, because the fit is a little loose, it is actually possible to yank the adapter out of the watch if sufficient force is applied. Official straps from Apple/Hermes do not have this issue, but this is my first time using an aftermarket adapter, so I am not sure if this is a problem that is widespread across all third-party adapters.
Also, the deployant clasp add-on, although nicely installed by the Delugs team, is not perfectly machined on one of the holes (there's a little bit of metal in the corner of the hole). Thus, an exceptional amount of force is required to "lock" one end of the strap, and it does not come off easily even when the mechanism is disengaged. This is not a deal-breaker by any means, considering that the clasp is inexpensive, but it is something that detracts a little from the premium feel of the strap. A previous strap I bought from Delugs with a similar clasp did not have this issue, so this is probably a one-off QC problem from their supplier.