Got mine. Works like a champ.
One caveat though... the button scrapes the side walls when depressed and makes an audible scratching sound. Hopefully it goes away with time.
I'm actually still favoring my Sigelei 13 over the Magneto. Sounds crazy, I know... but the threads are better, walls are thicker, and the mod is half inch shorter too. The Magneto switch is miles better though.