Fun but ultimately frustrating
The thing that I cannot get over about this game mode is how often many characters have their weaknesses removed altogether.
Genji's ultimate gets ranged, piercing attacks, so you can't kite out his ultimate. He no longer has to be mindful of his distance.
Freya's dashes are basically never on cooldown, so she always has an explosive bolt ready.
Doom and Vendetta never stop moving, and Doom gets a down smash for an extra mobility input.
Mei gets to reposition while ice blocked (as a frequent Mei player I still gotta be fair here).
Junkrat goes into his tire... and throws his steel traps into the fray... and creates tiny steel traps when he detonates concussive mines...
And there's no drawback to any of that. There's no trade for the power; they just get absurdly stronger/harder to kill because of it. Whereas for characters like Ana, sleep can hit in an AOE but it sleeps for shorter. Aawnd Sojourn can attach her disrupting shot to a person, but it deals less damage if she does.
And then other characters just pretty much continue doing what they already do, just maybe a little faster. Kiriko, Zarya, Lucio, Winston... nothing really absurd about any of them, and no real tradeoff either. Just beefier versions of their regular counterparts.
Like either every character gets to be ridiculous with no tradeoff, or every character has to sacrifice something for their absurdity.
I've played four back-to-back straight miserable games against people way above my ELO running the board with builds that just... have very little counterplay windows. It's been Juno torpedo build four times in a row. It's just getting really, really stale, which is frustrating because I want to be able to enjoy this game mode.