very satisfied. I had to replace a broken strap on my seiko monster watch and I really didn't expect to find it on amazon.  surprise! anyway, it's exactly the same as the original, although slightly different material.  it might have been nice to have included new pins, but, I had the originals, so I didn't mind.  I've had the strap on for a week now, and I can't tell the difference between this and the original seiko strap.
update 9/4/2012: still working fine after continuous use.