Fwiw, by now I've managed to download all Sampletank Max Factory, bonus libraries and Syntronik stuff coming with Studio Max 4.
There's some pretty good stuff in there. I mean, like "today's production level" good.
Especially some Syntronik stuff is done pretty well, especially as the patches feature some FX out of the TRacks series - and you can control their parameters within the patch, using, say, your ModWheel. That's quite nice.
But then there's always the moment when you run into, well, "things".
@IK Multimedia, please take some notes.
The entire modulation architecture would need an urgent overhaul. It's not only that it's an epic visual fail as in Sampletank (see the screenshot I've posted), no, the entire naming is just confusing. Heck, when I want to modulate a filter's cutoff, I want to see "filter cutoff" showing up as a modulation target and not "parameter 1". And in case any of the filter types has no traditional cutoff parameter, I would want the name of the parameter used instead to show up.
Also, pretty much all modern softsynths allow for drag'n'drop modulations. You drag a source to a target and then finetune the amount in a matrix or via some clever dual function parameter knob - or whatever.
Then, there's not even independent pitch bending values for up and down. That's so last-century-ish, really. For basses, +2/-12 is just excellent. Not possible with Sampletank or Syntronik. Well, perhaps it's possible through the modulation matrix, but as that's such a miserable affair in itself, I rather don't go there.
Also, the signal flow in Sampletank is completely unclear to me. I tried to turn a string patch into a nice pad with modulating filter cutoff and didn't even manage to make the filter work at all. Absolutely no idea why it's not just working by default. Or by using a clearly labeled on/off switch. I'm sure there's some trickery I'm missing - but there should be no trickery involved at all, this should be the most straight forward thing ever. Which it actually is in almost all other things I'm using. And fwiw, I'm not even remotely a newbie when it comes to all that stuff, in fact it's far from it.
I could possibly create an endless list of things that could easily be improved. And I would, in case you folks were interested. Just drop me a line if you want (I've got years of testing experience on my belt).