I've gotten a respectable soap out of this by adding roughly half the tube to half of a grated puck of tallow MWF, and dousing the resultant mixture with some favorite EdT to drown out the floral assault. If you want a rose scented MWF, leave off adding scent.
It drags the performance of MWF down, but MWF adds some much needed slickness. I thought I'd wind up with a post shave that would be better than anything else out there. I'm not sure that the post shave from the mix is any better than either of these two separately.