Used this when I replaced my roof last month. The rope seems plenty strong but it isn't nearly as bulky as others I've seen, which makes it a little easier to work with and work around. As far as the slip buckle (forget what it's called) for adjusting rope length it works OK but it doesn't really bite down on the rope when you let go of it like the squeeze type does, so sometimes I wasn't sure if it was grabbing the rope. In reality it most likely would have grabbed the rope if I started to slip but it gave me a slight sense of uncertainty about it, even if my feelings were unfounded. Fortunately I never had to put it to the test so I really don't know for sure how well it will work in a real emergency. Anyway, I got through my job safely without any incidents!Pros: The price of this rope was reasonable compared to others I looked at...It isn't as bulky as others I've seen and used...It makes my wife happy thinking I'm being safe...It at least gives you a false sense of security thinking you're safe (L.O.L).For me it turned out to be a good purchase and I would buy again if I ever needed one, which hopefully I won't! This one should do me for the rest of my life!