i dont have experience with the others meatsaw, but i have the tristar t-100(same as shark-c), its light and feels great in your hand, you will love shooting it, but the finish isnt great, it looks good but the black scratches easily
i have around 1k rounds throgh mine and have not had a single jam or FTF, this is the first semi-auto pistol i have had that kind of reliablity with, and it only cost 350$ at academy sports