I bought the strap just for it's vintage looks, cause I'm a Tweed fan. But even after selling the guitar I bought it for, I kept the strap for my main guitar, and I prefere it to other much more expensive leather ones.
The material (some kind of wool, like tweed/twill originally should be) is really thin, but the strap is very comfortable non the less. It sits nicely on the shoulder and, being soft and made of natural fibers, doesn't scratch my neck like nylon straps do.
The nature of the material makes it stretch a bit under the weight of the guitar, but it's like this with all the other straps made of natural materials.
What I especially love about it, is that it somehow sticks a bit to the clothes, and doesn't slide around under the weight of the guitar (unless you want it to, of course).
The leather pieces at both ends are surprisingly durable - even after a year of constantly putting them on and off, they still hold very well.
It doesn't get five stars because of two things.
The quality is not top notch, there are some (almost unnoticable) flaws on the stitching of the leather - and in my book five stars are for hand made, perfectly taylored straps.
The second is that it uses an ugly black plastic length regulator - given the vintage looks they should have used a chromed metal one.