I'm really excited about this, especially the K97. I'd definitely work up a house altbier recipe if I could keep a couple of packs of German ale yeast in the fridge at all times.I use US-05 as my house yeast for most ales, and W34/70 for all my lagers, but I still haven't found a good dry for hefe, wit, Belgian etc. I've tried WB-06 for hefe and it's just lacking, and T-58 isn't so good either.
T58 works great for my wit but maybe it is just my palate. It's the only style that seems to work for that yeast in my opinion.
To the op, I use dry yeast for 90% of my brews but mainly because I do a lot of American styles or lagers. Fermentis was supposed to announce two yeast strains available in 11.5 g at nhc which I am excited about. K97 German ale and s189 lager.
Good to know about T-58 and wit. I used it in a Belgian Blonde and it underattenuated horribly (although that was an extract batch so who knows what else went wrong there!)