No, he's not Perron v2.0. He's got a very fast accurate shot, especially the snap/wrist shots that he gets away extremely quick. He finds the open spots on the ice and has a goal scorers touch.
To me, I see many similarities between Rattie and Jordan Eberle. Both about the same size with Rattie just needing to fill out some more, both goal scorers and come up big in clutch situations, both cerebral players that see the ice well, neither are overly fast but are shifty and use that hockey sense to get into prime positions to effect the game offensively, both continue to need work defensively but Rattie gives a solid effort at both ends.