I have the Grace EZ4 and really like it. I think the difference between the 3 and the 4 is the number of bars. Mine has 4 bars on it. The extra bar is for the batting to roll onto. It is a breeze to use. So easy to load and once loaded it is great for quilting. It does take up some space but the ease of use makes up for the space. I bought the leader cloths that went with the frame, but it sure wouldn't be necessary, you could easily make your own.