I've tried out my sample twice now. I face lather and had no issues getting a lather that was perfect for my shave. I lathered it no differently than any other soap I use. I'm not sure why everyone seems to complain about it.
I did not find it nearly as slick as I was expecting. That is the quality that everyone boasts about with this soap. Williams is much slicker.
I suspect you did not work the stuff enough. When you think it is ready, it is not ready. It builds lather and volume fairly quickly, but you have to keep working it a bit and adding water. It then changes to its slick phase. Truly amazingly slick. At least for me. If you watch the minimalisto videos on youtube about this you will see what I mean. Takes a bit of getting used to. Cella gets slick faster for me. But I do love Stirling for the slickness.