If you're looking for a neutral lager-like strain... I just used S-189 at 64 F in a maibock and it turned out great, 79% attenuation. Clean, not fruity, no sulfur or diacetyl, just great lager character. If my one anecdotal example turns out being the norm, I'll be using S-189 a lot more in future. I like it better than W-34/70.