I have not used S-23 yet but plan to try it in near future. In fact I have a pack in my refrigerator as we speak so I will use it this year. Some report it as being excessively fruity and better when fermented warm than cold. I might split a batch and try it both ways, warm vs. cold. If memory serves, Denny hates this yeast. But, I figured, the only way to know for sure if I like it or not is to experiment with it myself. Soon. Not sure when, but soon.