When I first picked this up I was shocked at how light it was. Maybe I've just been using older ropes for too long and it's yesterdays news that they make ropes this light but I'm impressed.
I would recommend this rope if you've got experience canyoneering. If not, go with a fatter rope. Because of the smaller diameter on this bad boy, you go down the rappels much faster. Which is great when you're trying to break personal records but not so great when you're just learning how to rappel.