Light, simple, minimal and functional. The lock is just perfect, the quickest around for sure. It also feels very safe. I am not sure about lock durability but although plastic, looks pretty durable.
This strap is the best when you need to strap on/off frequently. I am not sure about long playing comfort, but it seems comfortable enough to me. I also have "padded" model, but it is just a bit softer, not really padded.
Two minor complaints:
I wish there were more designs to choose from, although black works just fine.
I'd also like to see "SG" model with one lock reversed. I had to modify it myself for one of my guitars - a little hand stitching excercise.
All in all, highly recommended!