I played around with the free demo version a bit yesterday, using a photo of a recent tapestry for the image source. I cropped into the tapestry and then turned the pattern generation over to Repper... here are some of the results that I saved:
Does this have potential for tapestry design?? Maybe! I'll have to work with it a bit more to decide. I haven't yet committed to buying the program, though... even through it's not too expensive. Looks like it may be more for others than for me. But I wanted to share a bit about it, anyway. Take a look, if you want to, and decide for yourself it might become a useful designing tool for you.