Making Obj 703 version II work

I gotta say, after reading so much praise about this tank and how it's "noob friendly" and "completely braindead" I'm a bit surprised and rather unhappy to say that after 17 battles I'm sitting on a 17.65% WR with 1090 dpg. Now, I'm not a good player, but also not a complete tomato. With Skoda T 56 I'm making 1603dpg/60% and with BZ-176 1716dpg/55%, so I'd say I generally can make an OP tank work somewhat ok. I'm sure there's some bad luck involved, but not only that.

One would think that I would have at least as good or better results with this supposedly OP and easy to play tank, but so far I find it worse than many tech tree ones. It doesn't seem to do anything well, it's standard rounds are APCR's so they bounce easily and 221 penetration is pretty low for them, HEAT rounds are, as usual, rather slow, but most importantly the gun suuuucks. I'm using vents + v-stabs + aiming, I'm playing with premium consumable and I can't hit shit from longer range and can't hit weakpoints from up close either. Combined with over 3 seconds of aim time, terrible gun depression and rather average DPM it makes up for a quite awful experience. Other than that, it's mobility is decent and armor is ok, but gets penned with gold rounds or by higher tiers pretty easily.

So, how do I make this tank work? What am I missing that makes so many people say it's a great tank?