Yes I am. I finished the majority of the single player ones except the massager one since I didn't have 12 slots open at the time as I was lvl 36. Now I am lvl 50.
Add me and let me know when you are up for playing. I also have a mic to use as well so we should be all set to co-ordinate. The only issue is getting the items needed for challenges as it is time consuming to do so.