I have a Grace Hoop2 on my "I have to have this next" wish list. I had the Grace EZ3 years ago and loved it (This was before they came out with the Z44). The EZ3 was very easy to set up and put a quilt on, but, had to sell it when we relocated across country. I think you will find that any of the frame systems out there will somewhat force you to learn to quilt in all directions, or limit your quilting designs to allow for only certain directions.
There are straps you can get (or make) that attach to the sides of your hoop to sort of gather up all the bulk, that might be a help for you. Will see if I can find a link for them and post it for you.
Found the link!
http://www.nosliphoops.com/quilt-holders.html