Ok, so I bit the bullet and bought BoS Premium yesterday.
I only had about 10 minutes before bed to have a look after it had downloaded and initial impressions visually are very encouraging, without any set-up. I didn't assign anything, just launched a LaGG 3 quick mission to have a gander. I'll get down and dirty with it tomorrow when I have more time.
One strange thing I ran into, on initial boot of the game after install, when I clicked 'allow access' to the first run firewall popup it seemed to repeatedly spam the forgot password button on the splash screen causing many thousands of tabs to open in Chrome bringing my PC to a grinding halt before i'd even got into the game. After returning some order to the situation via the task manager, force quitting everything, I tried again but it wouldn't log me in, it just sat there with a spinning wheel for about ten minutes. Tried logging into my account online but it denied access due to over spamming from my IP address! I gave it a few minutes and tried again and managed to log in to the website no problem. Tried the game again and it did it again, a cacophony of clicks as it opened Chrome and spammed the hell out of it! I managed to bring it back under control eventually without having to force quit the game this time and logged in OK. I was close to turning off the PC by the button and walking away though!
What would be causing this? It's like a sticky key but I couldn't find a culprit. The second time it happened there was no firewall pop-up, so I don't think that was the issue.