Yea, AD licenses can work that way, note that support is an ongoing cost, if you want to get the updates, and you generally want to stay about a year behind, they are a bit notorious for the "Does it compile? Does it Link? Well then ship it already" school of software testing.
I have successfully imported .asc layout from Pads9.5, never tried for a schematic.
What does not seem to do anything very sane is import from DxD (Spit!), but DxD is not even that reliable at loading its OWN work, I hated that tool.