I can give a impression about them from contacting them a couple of days ago, but haven't played any of their modules before. Since the announcement came out that there would be a native version for Tales of the Old Margreve on roll20 I asked them whether there are many differences between the Pathfinder version that is already released and the 5e edition that is on kickstarter now. They came back to me in no time, and seem to be very approachable, nice people. If its interesting for someone here's what they said: The maps, lighting, tokens and descriptions are not system-specific and work equally well for Pathfinder or 5E. The monster stats attached to the tokens are specific to 5E, but you can ignore those.