There's two points that i want to make about a matrix;
If anything goes wrong, it's always an o-ring or the battery. There are several comprehensive leak guides on the internet, and there are good aftermarket o-ring kits available.
If you maintain your marker it will work every time. If you put a bit of oil in it and wipe it off once a month, then at some point it will go horribly wrong.
Second, if something does go wrong and you don't know what to do, you call up diablo direct in brighton, and they will help you sort it out. They have been outstanding with their technical support, and always had my gun sorted right away.
Just look at the replies on this thead, how many people recomended a viking, vs a matrix?
Look at what teams are shooting? SC Ironmen, Trauma, Ground Zero, all shooting Matrixs
my matrix here:
Good luck with your purchase.