In my opinion, it is a very good all around arty at tier 8. It is only the best at gun depression, frontal armor, and is tied for best at minimum stun damage. It is the worst at dpm, but not by a lot. It is the second most mobile arty at tier 8, only the BC-150-51 is more mobile. It only has 1mm less pen than the best at tier 8. It is the second best in terms of camo and has the best view range.
So in my opinion, it is a good all around arty. It is my second favorite at tier 8. My favorite is the SU-14-2.
But the above is just my opinion. Some people think the M43 is the best, others might think the GW Tiger P is the best....or the BC-155-51 is the best. And there is that one strange dude from Latvia that ranks the FV-207 as superior compared to the rest. But, what does he know....
Oh....when you drive through Himmelsdorf in your M-43, all of the ladies will swoon because they love it.