But that's true for any plane.. Yeah, the 152's on the worse end of the flakiness spectrum, but if you approach it correctly, not trying to fly it like a spitfire, the same way you don't approach a Spit14 like it were a zero, it's really not that osbcure a flight envelope. It holds aileron authority further than the other 190s, has one of the best rudders in the game, and is at least as well behaved as the other 190s until you push it too far. I don't think pushing it too far is a problem with the 152, since in 190s you have no use for their post-departure regime. Anyone who's flown 190s will know to stay skirting the safe end of departure. The same applies to the 152, and not only that but the 152 is a better plane inside the envelope.
If you pay attention to the sideslip instruments and/or have taken 15min exploring what triggers tailspins, it's really not esoteric anymore.
The only real PITA is sluggish control response. I don't see how the 152's hard to airbrake with compared to the other Fw. It's not only better at it, it's more useful once you've slowed it down that way. The other 190s' "user friendly" nearly automatic self-correction mean they simply refuse to cooperate if you try to airbrake with them.. They simply won't hold sideways.