I've always liked drifting but after I built one I couldn't get any friends motivated to do it, then I looked for clubs and none were reasonably close. I was SOL, so I sold it. Bummer.
I retired from RC, now life is all about guns and long range shooting.
A buddy of mine had one of those in his at the LHS. I tried it and did not like it. Felt weird not having sole control over it. Then again I learned to drift without it. I imagine having it from the start would mean I would be DK.
I learned to drift without it, tried it once, and found it did it for me.
Didn't really like it.
Besides, I know some people who can drift amazingly with it, and without it, they're poop.