I am a beginner as well and is currently using the Moto, it is similar to yours. I wish I went with a slightly stiffer boot though. I seems to have to exaggerate my motion to get my board to move. Could be my lack of skill, but I think a stiffer boot would help with that still.
I am still a beginner as well so I don't think I am qualified to say which stiffness is best for learning. My experience is that I found the Moto (which is the same response rating as TWC) to be just a tad too soft for me. I should have gotten something like Burton Ruler.
I am unfortunately stuck with it, since I damaged the shoe with my board's edge. So I can no longer return it for a different product. I will still give it a try for the rest of the season to see if it gets better as my skill improve.