I'm not sure why the maru gets such a reputation for being hard to hit. I have the maru and think its great (feel, workability, distance, head size, sound). of course, its not a 460cc bomber but everyone gives the impression that its impossible to hit. even off center i still get 4/5 distance with decent accuracy. I like it better than the j340 which feels a little less solid than my maru foam filled. i still think the j340 is awesome but i'm just used to my old, trusty maru.
I have a GD cp02 in mine and i get boring, deep, medium trajectory on my normal swing. trajectory is easy to vary with this club.