I liked Cole being so nervous all of a sudden and a bit paranoid because he's human and really wants to help still but just can't. I liked him taking the thing out of the oven and burning his hands.
And I didn't think it was suspicious that "Leo" hadn't mentioned the ring of inspiration. He simply told them muses were missing and to go home and read about them in the book. It's not entirely implausible that the ring could've slipped his mind. So I thought it was crap that that is why she realised he was an imposter.
I actually thought Paige wanting to send a HUMAN Cole to the underworld was complete and total crap and was just another way for her character bring out the anti-Cole that she has no for reason: "He is a demon".. no he's not. And yes he knows his way around but besides them thinking he's dead, he has no powers to defend himself which is actually important. And if he's put back on their radar they'll come after him except he'll be human.
I thought it was extremely over the top that Paige could call for the ring based on an image. Piper has a limit to her freezing power, Phoebe doesn't get to choose about her premonitions and can't fly or anything but Paige can summon any single object on this planet based on a rough drawing of it?
"you could try calling for it again" "oh no that won't work he's PROBABLY figured out how to protect it"... but you can't spend that 1 second to call for it anyway just to try?
I thought the whole 40s night thing was a cool subplot. The club looked good.