Pretty horrible episode overall. I can't remember the last time I was this surprised by the lack of quality of Doctor Who in a long, long time. Even Chibnall's era was better than this. There's many reviews that talk about their budget skyrocketing because Disney has signed on and I suspect that might've been a good reason as to the plummeting quality.
In addition, they ran the mannerisms of the antagonist into the ground. It felt so forced and overdone that it robbed any essence of natural fun to be had out of existence.
I'm really hoping the next few episodes will be better as 'Space Babies' and this were both massive wastes of time.
Overall, this episode has been a stellar low point for the series in a way that shocked me. The absolute lack of honoring their own rules, breaking them in the same episodes, not to mention how horrid they make the value of 'music' into a weapon. (Seriously, floating notes? What is this? Amateur hour?)
It's all enough to make me seriously want to stop watching, but I felt the same way during Chibnall's first season (although not to this point. It didn't actively push me away, was just boring) so I will carry on and hope for the best.
Hopefully RTD can come back to his roots and remember what make his seasons some of the greatest writing DW had. He really needs to step away and get some perspective.