We actually had 3 of them out in starbase within the first 5 turns! It was the worst.
We actually almost won (meaning i think we had the right character cards to beat him with a little luck on the draw) just had bad luck at the end and kept getting stuck with more cards than we could trash. Locutus got us pretty good and we ran out of borg cards after pulling him 4 times.
That'd be a cool idea. I'd definitely consider buying it.