I'm shocked I don't see more of the Portal person. That seems to be such a game changer, when you need to get back to a objective pronto.
Her other skills are fairly bad overall, and it's an ult that can be hard to charge up due to her poor combat skills.
Main issues with the hero after playing it a bunch is, turrets cooldown is way too long(it's like 15seconds?) considering the turrets die in one hit from anything, including splash damage and can be hit through walls sometimes, so if the enemy clears most of your turrets, it takes forever to rebuild. Arguably Torbjorn is the same but his turret is extremely durable if you put it in the right spot. Her weapons are terrible for fighting anything but bad players overall. The orb mobs way too fucking slow to hit anything and doesn't do that much damage considering it has to be charged and moves slow as shit and the beam is basically melee range, which against bad players can be good but against most means you'll die before you kill them. Her heal is absolute garbage, it's basically Torbjorn armor up without the scraps cost, however it seems to only work once per spawn on people, so once they got hit a bit you can never reshield them until they die. It has a long cooldown too so it's annoying to shield the entire team.
Cooldowns is really what kills her, if she had lower cooldowns/ways to lower cooldowns by doing something with a passive, she'd be a lot better. If you setup a turret area to defend say A, and the enemy manages to push through/clear all your shit, you cannot resetup a turret area on B before they get there because it takes like 30+seconds to get only 3 turrets, which are hardly a big amount. Your healing is more or less nothing and she's barely a support in that regard, the only supporting she does is her ult.
Her ult is definitely amazing, assuming you can drop it in a place a Tracer won't find quickly by blinking around like a crazy psycho bitch.
I kinda like her but her performance is extremely dependant on how retarded the enemy team is. And she's garbage on anything but defense, so that's that too.