I don't have finished projects yet, but have used it to cut out some letters. I starched the heck out of the fabric, then ironed on heat and bond lite ( so you can sew through the fabric when done. If you are not going to sew it down, you could use the heat n bond heavy. You have to, or I did anyway, make sure the fabric sheet is really stuck down to the cutting mat.
I haven't tried to cut anything too detailed yet.
I'd search YouTube, there is a lot of info there on it.