Get the 4*, you will not regret it! It makes for a great second airplane in that it will make the transition from high wing to low wing a breeze. You will have a blast with it. Just remember to beef up the fuselage right behind the wing, a little weak there. Other than that, it's only "vice" (if you can call it that,) is that it loves to float during landings. It just doesn't want to stop flying!!
A really snappy and all around fun flying design!
Jake