I started with the mega 9 on the inspria frame. I did not have it long until I moved up to the 18x8. The 9 in does not have a lot of quilting room. I still have it and do all my piecing on it is a real work horse! I just did not think it had enough quilting room. Price is great and it just depends on how much quiling space you want. You also have to roll the quilt alot more with the 9.