Look, this game is not HoI2 Arma, its a new game (at least i get the feeling thats what they aimed for). Like i said, i havent played WW1 (dont care much about that period i guess), but WW2 is fully playable, and AI is certainly not broken: in my German game everything happened much the same way as in HoI2 (altho i didnt get the Anschluss at first to fire in 38'), in my Soviet game, after partition of Poland, i made a mistake of removing all armies and putting them on border with Finland, thinking "yeah im gonna overload Finnish and bring them to socialism like i always do", but it didnt go as i planned: Germany attacked me

and that was a lost game. You can pretty much expect to get 20ish hours of game play before the "differences" annoy you (if they do) to the point where you dont wanna play any more - at which point you either start moding like i did, or stop playing and get a mod (theres already a published mod). In either case id say game is definitely worth 10$, and even if its not 100% polished id say its definitely not like some Paradox titles which were not even alpha version on release. If i went out for a movie, even in a cheap ass sucky country like mine, id spend way more than 10$ on a single afternoon, so again IMHO its well worth 10$, if nothing else you will eventually play mods (im about to put together HoI2 style mod without mobilizations and new stuff like that).