Decent to good start. Thankfully they didn't drag out either the Iris keeping secrets/feelings to herself stuff and have that shit span half a season or the Killer Frost/Kaitlyn stuff and have that drag out as well like they usually would have. Hopefully they're learning and it's not just a product of Crisis being the main season stuff and rushing through the first half.
The black hole effects made no sense though. Things are being dragged on the floor instead of towards the event. Things close to it aren't effected, but stuff far away are etc. Same problem with the Supergirl ep where J'onn isn't being affected by the portal at all, but get tripped and immediately suck up into it? Uh, I guess.
Flash Gordon music was the highlight of the ep. Also, Cisco (and hopefully Barry or else it makes no sense) building a whole new suit in less than a minute and a black hole killer (Stellar Grenade) in two minutes. Plot tech gonna plot tech.
edit:
Also, who the fuck is going to fix all those windows Barry broke?
I didn't like that episode.
Did they drastically reduce the budget for this season? Because the effects were bad.
Saving the budget for Crisis, no doubt.