Hi, I've just got Aalto and I'm really enjoying it. Fantastic synth but I have discovered a problem with automating the cutoff frequency in Logic, presumably the same will apply in other hosts.
The frequency automation seems to operate on a linear scale so the juicy range of around 150Hz to 1.5KHz happens in the bottom 1 percent of the automation lane, the rest is pretty useless space. Even with the automation lane expanded to fill the entire screen most automation I have been programming happens in the lowest few pixels, not very handy.
Unfortunately this is a Logic problem as far as I can tell. If you pull up Aalto in Ableton Live, you will see that the exponential parameters like cutoff are handled correctly.