I think Symmetra is actually very underrated right now and a very solid pick. Since her last few buffs I think she’s a fairly solid pick similar to Torbjorn, although I think she takes a lot more familiarity with her kit.
Despite popular opinions you can’t just hop on the hero and expect it to be done and done… Unless maybe your on Lijang because she’s just amazing on that map.
All that said, If I could change things, I would personally do a power shift in her kit. I would weaken her turrets, and buff her weapon. Her turrets are extremely annoying, but they are much weaker in the higher ranks… Their slow is the most vital part that is brought to the table.
Anyways here’s the powershift I would go for:
Sentry Turrets:
Cooldown reduced to 8 seconds (Was 10)
Damage per turret reduced to 5 dps. (Was 40 dps)
Photon Projector:
Damage levels adjusted to 80/130/180 (Was 60/120/180)
Now whenever Symmetra is stunned, she gains a level of charge. And when she is knockbacked she gains half a level, increasing the speed at which she can gain a level of charge.
Reasons:
Her turrets are up more often for their main usefulness of slowing down enemies, while doing way less damage so they are overall much weaker. This is the part of her kit that makes her hated among many players and the reason she was so quickly nerfed in the past. Her weapon is not only more consistent, but using crowd control against her greatly increases the speed at which she can deal her fully charged damage.