Has anyone tried one? I really want a Cybex Onyx, but someone is selling a Zooper Twist in Craigslist for $50. The pictures of it are immaculate, its beige and brown and I see no signs of wear aside from the little on the wheels. Its like a 40 min drive for me so I dont want to just go look at it, and I will be heading out that way to do some shopping over the weekend. I used my SILs Zooper Tango double and it was really nice, but I have never tried a single of theirs.