Yes. I used Impulse Anywhere on release day. A few days after that, when Stardock released the patch, Impulse updated Demigod on my home PC with no problem.
It's quite a fantastic addition to Stardock's electronic distribution system. Otherwise, I would've either had to a] wait until I got home that day to install, do it overnight, and not play until the next day, or, b] Download and actually INSTALL it at work via Impulse, then use the archive function to get it home.