Really don't like the resolution to the Rukiya storyline. Actually, I just don't like the Rukiya storyline at all. Half-hearted set up leading an abrupt and unearned payoff.
It made me really angry that he let her go. With so many other possibilities to find a cure, and the slow aging of the transporter, i'm sure that "running out of time" could still have been dragged on quite a lot. No more storytime; just unzip her and rezip her in a fraction of a second, keep the pattern solid, and stretch if out indefinitely.
I assumed that he would eventually save her, and going to be with her / help her would be his reason for leaving the Enterprise.
I would never have trusted that situation, regardless of all the wonderful promises from the god-thing.
knowing that it is there, and that he could bring her back there at the last minute if it was called for, would have been enough.
the real test would have been, what would the entity have done if he said no, we are leaving?
Other than that, I quite liked the campy / fantasy portions of the episode - just disliked the resolution.
When they said she was beamed somewhere that no one could find - I thought SHE became the neural net in the nebula, tbh.