This episode was pretty good. The episode had the best pacing. The nostalgia, the scenes look of Arrow and flash was nice.
The best part was Ezra Miller's and Grant Gustin's meeting. I never thought that would happen and yet it did. Just a great moment.
The climax of the episode was also good, the heroes uniting to fight the villains.
The fight was a little disappointing if I'm being honest. But a decent all together