I actually liked my A20 alot. Even kept it for a while after I picked up the T34.. until I figured out that the T34 was a match.
One thing it might be is crew. I ended with an A20 crew that was at or near 100%. In fact, they are now the majority of my T34/85 crew. Not sure where your A20 crew is, but by the end, I was snarfing up arty and getting great spotting with my A20.
I do NOT miss the low HP nor the fact that my A20 made driving my KV seem like such a chore.
Finally, I have not seen ANY of you fellows on my games. During the run up, I mostly study what tanks I am up against and not the names. I will try to change that.