Is it worth buying a newer Fight Stick?

I've been practicing using a stick for a couple of months and I'm starting to get the hang of it, it's made playing SFV a lot more fun.

I managed to get a second hand Madcatz Fightstick PRO for like £50. I can't find anything wrong with it, although the stick feels a little loose.

What sets the newer TE2+ stick apart from the one I have? Is it worth getting one?

Sorry if this has been asked before. I did a search and couldn't find my question so I'm guessing it hasn't been.