I have this system. I still have to fuss with the ruler and getting the fabric perfectly straight to have accurate cuts. I like how it holds the fabric for you but you have to have the fabric perfectly straight on a mat line before cutting. I have about the same results as using just a plain ruler and mat. I can't cut shapes with it at all, one fabric piece gets out of place and the cuts are all off, for me anyway.
It is quality made. I prefer my Accuquilt Go though.