Hi Anne,
I bought one of these last winter to use in our RV. It's the greatest thing since sliced bread! When I first opened it and set it up, I was a bit disappointed, as without a machine in it, it seemed rather flimsy.
However, once you put a machine on it, it's sturdy and works beautifully. I bought inserts for both my Bernina 630 and my 730.
It isn't heavy at all, and fits quite nicely into it's carrying case and is easy to move around with the wheels. It folds to about 6 inches deep.
The only complaint I have with it is that the surface chips very easily. Nothing that can't be touched up however.
I use mine on nearly a daily basis.
The Wandering Quilter's Life in a Box!