An 80% 3CP game is not playable, in my opinion. A 100% game is rare, but you need to be close to 100% to even bother with such a high-variance venture. But again, the benefit doesn't come from having a higher WR, it comes from lower BR requirements to maintains low RoR vs. blackjack. And the amount of time it takes to reach the "long run" is shorter.
As far as the issue with not being able to catch Aces--it's not a matter of whether or not anyone would "recommend" playing a game where you can't accurately call Aces, as this game is -EV to begin with.