I kinda go back an forth with really wobbly and medium. Usually just don't ever tighten the trucks and they end up getting loose. Couple months ago I had my front truck rattling really much and the back truck just a little bit. It's fun, when you're in full control of the movement of the board, and pushing feels so much more fun, but then at least I lose quite much in pop and controlling my ollie and also a little speed.
Recently I got fed up with all the wheel bites and inconsistancy, and tightend the trucks to like medium, and right now it feels way more fun to be able to go really fast and do flips and everything else more consistantly.