I have only a few hours, but my mind is made! It's a gift, so I do not know the price: p
A cot with her I have 2 leather straps on my electric, and I used nylon straps (usually sold with the guitar). It replaces the nylon strap (which is rather good quality having said that) on my Ovation as a gift because the person did not know dj j'tais equipped with strap-locks on my electric, it adorns so my electro-acoustic.
It is nikel, comfortable, long ago what it takes. The Systm lockAge of air plutt reliable so I did not worry this cot.
I think it's worth the price, if I had not had a strap-locks, I would probably opt for Systm, even if I am fan of leather straps ^ ^