I have a Medicus dual hinged driver. It works ok, but I've found that you can swing that club without breaking the hinge and still have a bad swing. My fault was getting the hips too far ahead of the arms and hands on the downswing causing a moderate to sharp pull to the left.

I've since corrected the problem, but it didn't show up on the medicus driver even with the hinges adjusted to a very light setting.

So, the medicus isn't for everyone. I'd get lessons and then later use some of the tools to refine my swing.