Hmm..
If you expect much of the Ta152H-1, then you'd be disappointed. The IL2/FB/AEP/PF Ta152H-1 is vastly superior to the AH2 Ta152H-1.
However, rating the FM overall I'd say the AH2 FM falls under 'very accurate'. Especially after the introduction of AH2, Aces High has lost a lot of the 'fly on rails' feel, and you can really feel the weight and load of the plain in many regards.
Also, another big strength is that AH developers retain a keen sense of balance, and will not 'sway' in favor of certain people or groups easily. I've played IL2/FB for a long time too, and one thing I couldn't stand was the noisy community who disagreed everything about the plane FM, and poor 1C wishy-washy with FM, DM, gun performance, etc etc with every new patch. Boy were there some real 'whiners' in that forums.
Like others recommend, give it a try with the free 2-week trial.