Yes, I was there for the beta...
Arcade mode. All graphics, but the menus are convoluted and bugged like hell. Most folks fly with a mouse and the forces acting upon a plane are dumbed down to the point that's the BEST way to fly. You can map control sticks and throttles but what's the point? You get no more precision from it.
Then there's a limited planeset that's got prototypes and what-iffs, basically trying to make the same plane for every country... so because Japan doesn't have a jet they model the Japanese upgrade for the 262 which never got out of engine testing in the real war.
Then there's the plane structure. You earn score, then use that score to "buy" better planes. And better stuff. Like engine power boosts, and you actually have to buy crew for multicrewed planes... But flying any plane damages it (heaven forbid you lose the plane) and you have to pay to maintain that plane too....
So you have to linearly upgrade several tiers up from 1930s-era planes to get to what might be considered mid-war planes here, and then it gets nearly impossible to keep them. You earn less score and pay more for basic stuff just to stay there.
Kind of like World of Tanks, from what one person told me of WoT (never tried it).
Overall, it's going to tank and badly. It doesn't have the physics of a flight sim. It's going all out for eye candy, but it's totally arbitrary right now in regards to actual plane handling.