I'm pretty happy with this one.
No problems. No detachment issues as reported with some other aftermarket bands. The strap is fairly long and with my smaller wrist I have to use the last pinhole.
I've already had some positive spontaneous comments about the looks of the band. It may not be as luxurious as the Apple leather straps, but it doesn't cost $159-450, either.
I had bought a Nomad leather strap for about the same price when I first got the watch, and it's pretty nice, too, but this one looks better to me. Nomad makes some more expensive straps that are worth considering if you want to spend the money.