Some of the plot isn't for me. But overall a great serial & start to the multi-doctor stories.

Even if the banter between Troughton and Pertwee is great, Troughton's character feels somewhat flanderized.

Not a fan. It's not completely without interest, but Stephen Thorne, just as in The Hand of Fear, is so bad in an important role that the whole drama collapses. I cannot wait for it to end soon enough, when it should be the sort of story you want to last forever.

I'm a bit sad Jamie couldn't come back, but on the plus flip side, it meant Benton got a bigger part, so mixed feelings.

And I'm not a huge fan of the Gell Guards design.

It's fairly disappointing that William Hartnell couldn't have a more substantial role, but that was something that was beyond the production team's control, so I'll let it slide. What's less excusable are some of the really crummy production values, with the laughable and unintimidating design and movement of the Gell Guards, and Omega's domain being represented outside by a bog-standard quarry with nothing done to make it seem even remotely otherworldly or unusual, and inside by a series of ugly repeated cave sets and an incredibly cheap looking throne room.