The Mach 9 is a beginner to intermediate board bro.
I wouldnt recommend u get it if there r the likes of Nomads etc for a lil more money.
Also 42.5 is quite big so if ur heavier than say 75kg and around 6ft + tall then u would say go for it.
But then again it could come down to preference too.
I know a few guys in or around those dimensions who say that that size is a tad too big for them.
In my experience boards that come with a leash plug already in them are not the best quality as theyr catering for a person who obviously doesnt know where they prefer their leash to be or to be frank has no real riding experience
So in my opinion rather go for the Nomads etc... if u can cos there u'll have a stick with a good properties that will no doubt serve u better and probably last alot longer too.
All the best.