I just bought one of these, it arrived in 3 days (I live in Melbourne). I also bought the 22-27 spanner, it looks like a good spanner to cable tie somewhere on the bike.
It went on easily though would have been even easier with some basic instructions! (I'm a lazy bastard).
It's strong, light and covers all the vital points and more and there are no vibrations that I could hear when revving my engine after installation so it gets the thumbs up from me.