I got a new computer (laptop) with Windows 10 over the winter, and never installed Paragon Chat. With the release of 1.0, I decided to do so. In the event that it can be of use, here is my experience:
I already had tequila (just the .exe) downloaded, for when I got around to doing this. I ran it last night, and it seemed to install things correctly, so I went to bed.
I opened Paragon Chat, and logged in via PC successfully. Rather than getting the CoH loading bar, as I had in the past, I was immediately taken to the character list of (I assume) the default server. Unfortunately, there is no sound at all, even when I turn my volume up to 100.
Creating a character took some time, but I got it done :p . Things seemed to go well. I went into the game, and opened the options to check volume. When I went to that tab, the "apply now" button was blinking. So I clicked it. Not sure what happened. Other than the sound, everything else seems to work fine, though.
Edit: Quit PC. Opened Icon. Unfortunately, it has no sound either. Same with icon in NPC edit mode. SO it must be some issue with CoH and my computer, not PC.
On the plus side, this is the first of 3 laptops I've played on where the game actually recognizes \ as its own key, and not ] instead (or whatever that oddity was).