The unit received a number of buff and more consistent damage. I actually use it more now, since it easier to keep alive.
It was no problem to have stug-E deal consistant good damage before the patch if you simply had the tank stationary. Now even hits does not even kill models and it still misses a fair bunch... not to mention its slow rate of fire make it useless... there will never be a case where StugE will be a better choice than an ostwind or p4 now.