(Insert Rating analysis here)
At the time I'm writing this review, Promi is as good as any AI out there. Promi not only plays any settings, but plays them very well. Promi has beautiful team game coordination with himself and is awesome to for an ally with humans. I suggest however not to use the taunts to influence promi too much (when allied) because AIs usually know what is best unless the map is strange. I couldn't think of any flaws if I tried to, except perhaps the resign rule is too strict (requiring 0 TCs and 0 Monasteries on top of other things before resigning) but that may only be in AI wars anyway in which case it would be understandable since in AI wars if a match goes too long it is considered a draw.
So why a perfect 5? A few reasons: Promi can play any setting, several AIs with 5 or 4.5 stars would be beaten easily by this beast and when trying to find flaws, I struggle to think of any practical ones.
Promi used to be the elite passive AI, making it understandable very popular with humans not interested with rushing AIs. However, Promi is now one of the best rushing and booming AIs currently available. Ever since the Author changed this, Promi has been noticably stronger. (Sad for those who liked that particular characteristic though)
I beg of anyone who enjoys challenging AIs with UserPatch capabilities to please give Promi a go, this AI is nothing short of a masterpiece.
I suggest playing 4v4 with friends against this AI, the flanks will be fighting for their lives.