I'm sure the Mutant, just like all the other bullpups on the market, is an accurate rifle. Sure the trigger mechanics resemble that of a finely-crafted Swiss watch, but at least with my bullpup (and I'm not going to mention what brand it is because it doesn't matter to me), I can adjust its trigger-break to be as light as I want it to be and for it to do so like glass.
In my experience and opinion, a gun that is accurate is one that which the shooter is able to consistently manage its firing behavior, provided everything else (inconsistency of regulator, dirty or off-machined barrel, pellet-clipping issues, incorrect pellet size, shooting technique, etc.) has been ruled out. On my best days, even my Air Arms TX200 springer or S410 XTRA (which has been gutted and dropped many times over) will outperform my Russian-made bullpup when I'm shooting it on my heavily caffeine-ated days, and vice versa. I think the important thing is if your gun shoots well, that's pretty much all that matters regardless of its brand, type, design, etc. That also goes for things like scopes, bipods, pellets...whatever.
Cheers, have fun, and enjoy your new Mutant! I'm certain that it's one heck of a gun.