I went into this episode honestly full of hope. I liked wish world, it set up a fantastic premise. The Rani, Omega, I was expecting great things. And honestly, a lot of the time that makes me at fault for getting my expectations too high.

But even if I had tempered my expectations as low as possible, I'd still have been disappointed.

It's not all bad, but most of it was.

I loved seeing Anita back. RTD mentioned in Unleashed he'd been thinking of this scene playing out for a while and Moffat creating the time hotel gave him the idea of how to get out of it. It gave us a great character back for a moment. Really good thinking there. Unfortunately, the fact she was a quick way to save the Doctor showed, because her character effectively became a doorstop for the rest of the episode.

The Rani's encounter at UNIT was fantastic, one of the best scenes of the episode. I loved seeing her and Mel interact. It's a big part of what makes such a long running show great, characters meeting after decades. This was very satisfying. As was the Doctor's trickery to take control of her air scooter. The offence the humans took at the Rani's rejection of using Poppy to restore the Time Lords was a bit silly. Imagine if someone suggested restoring humanity but also we'd all be part eagle because a half human half eagle creature was going to be used to restore us. Of course you wouldn't want that.

The fight scene between the bone creatures and the UNIT HQ was cool. There's a bit of CGI that was actually just fun to watch.

And the Rani convincing the Doctor to just go along with letting Omega come back, I liked that. He is after all, only Gallifreyan, and he was curious too. That was good.

Unfortunately, they decided to give Omega the Sutekh treatment, and turn him into a giant CGI creature, presumably because they have this nice fancy budget now. I loved Omega's original design, why couldn't they just have that come back? The giant creature seemed so unnecessary.

And then having him eat the Rani? So that whole multi-season arc was over... just like that. Immediately followed by the Doctor blasting Omega back in a whole sequence that lasted about three minutes.

Finally, the whole sequence of Ruby remembering Poppy was interesting. Unleashed kind of hinted that Ruby remembers because her memory works a bit different after 73 yards. I didn't get this from the episode but it helped make sense out of that.

But I find the way she was treated by the Doctor and Belinda kind of odd. They were downright rude to her which was so strange because a moment later that was forgotten.

The line from Kate of them all being the Doctor's children felt really weird. Like a modified version of "The real children were the friends we made along the way."

Then came out final sequence. The Doctor choosing to regenerate to save the life of a baby that ceased existing. I'm okay with that. The Doctor's given his life for a single person before. I think it's an admirable reason to regenerate.

Thirteen arriving was a welcome surprise. It was like she never left and she was absolutely fantastic. But, I do wish this happened earlier in the episode. I feel a Doctor's final moments should be special, for them and their companions. Making part of it about another Doctor felt weird.

The Doctor heading back to Belinda where her entire character changed to be completely revolving around her child was really disappointing. They could have set this up nicely during the season, but instead we got this really jarring change.

Then, that very end reveal, which I have to admit I first thought was Joanna Lumley from Curse of the Fatal Death, but then realised it was Billie Piper, and I was just... baffled. It felt as comedic as Curse of the Fatal Death to be honest. The credits however, didn't credit her as The Doctor like regeneration scenes usually do, so I guess we'll find out what weird antics are going on there.

Finally I'll highlight the lack of Susan, who showed up for barely a few flash sequences very the last couple episodes, after having her be mentioned a couple times over the last two seasons. It really felt like this episode would see her return, yet we just got nothing in this episode which was an incredible disappointment.

Overall, going into this episode had the prospect of three significant characters returning. The Rani, Omega, and Susan. And on all counts I was disappointed.

It had a couple nice points in the episode that stops me marking this below 1 star, but I can't justify giving it more than 1 either.