Your general opinion of this product.
From the looks of the photo, I thought it'd be a padded strap. It's not. The thickness you see is the leather that covers the elastic mechanism. The side that touches your shoulder is smooth, pebbled leather. It's not rough at all. The stitching is tight and well done. The elastic feature is neat, although elastic deteriorates over time. You simply push down on your guitar, and it stays down. It doesn't click or lock in place, but it stays there. You can then lift it back up to its original place. I'm not sure how useful the feature is, but it works. See the metal ring that the thinner end straps wrap around? When you pull the guitar down, those rings are stopped by the leather guide sleeve for the thinner end straps. This means 2 inches of travel. Which means that you can lower your guitar a total of 2 inches. I wouldn't buy it just for the lengthening feature. Its practical usefulness is minimal, if you ask me. The strap itself, however is as tough as, well, leather, and the all-metal hardware should last a lifetime. I'm 6'1", and wear my guitar low. It's long enough for me to do that. As long as you're not looking for a padded strap, I think this one will probably last you for the rest of your life.