This one is the original (before the II). I set it up but find it to be unstable and shakey. I thought maybe once the quilt was loaded, it would be better, but not. I must be doing something wrong and hoped someone with experience could help me figure it out. The L-shaped side bars are not stable, although I tightened down the clamps. They want to swivel so don't stay straight. The white side arms don't want to move equally up and down. Belly bar up on one side and down on the other side. And -- as a result of the lack of stability, the bottom carriage does not want to stay on the track.
Actually, sounds like I've done EVERYTHING wrong. The instructions didn't look that complicated. LOL!