This is a very good strap.
I've got both the short and long versions of the Betty and they are both awesome. Mono is a very nice brand. I've got a bunch of stuff from them, and it's all the bee's knees.
Very nice materials and feels sturdy and high quality. It also looks modern and generally cool. The strap is quite chunky, both wide and thickness wise, which to be honest, took me a bit to get used to, but now I absolutely dig it.
The price isn't the best, but I think it's completely worth it.
I totally recommend this strap.