As with everything Vanasche the design and build quality is top notch! It's much heftier than I thought based on the pictures. But it does replace your existing brake caliper mount so it's not all new weight.
I purchased for my 701 Enduro because I dragged my brake disk over a giant slab of rock in a slot canyon on a trip to AZ. Luckily no damage to the disk, but having this on will let the guard take the abuse first.
The only thing I worry about is when you beef up a component in one area will it cause failures elsewhere. IE, the machined slots on your swingarm that this mounts to. I wonder if I take a hit hard enough will I damage those requiring a swingarm replacement vs just replacing a damaged disk. Granted that seems like it would require a great deal of force to happen. But it's a similar concern with things like shift levers, you want them to fail before they break what they are attached to. Nonetheless it looks great (got the black) and I'm confident my brake disk will never get damaged.
I'm extremely grateful for Andrew making such well designed quality parts for the 690/701's!