Quite the underrated Story!
I think this is such an interesting Story in many regards, not only does the Doctor arrive somewhere where he knows and even admired, but it also draws some great Parallels to An Unearthly, showing how much the Doctor has grown through all his Adventures.
While Dodo by far is still a bit a weaker Character compared to other Companions we got in the Past, I think she gets some okay and great Moments here, where Lane can prove that she has a lot to offer.
Steven gets some nice Material here too, even if his Exit can feel a bit abrupt, at least it has some great Moments with the Doctor and Dodo hugging each other and wondering if they will ever see him again.
The whole Culture around this World is just great, the Elders are such interesting figures and all played quite well.
Really the Story has a lot to offer and has something interesting to say. My only Issue here is something that other Stories are effected as well that being the Use of Blackface for the Elders, which of course is off-putting regardless. Then again this Issue is not exlusive to this Story and a few others are guilty of it as well, here it’s just more noticeable really.

Hoping with the Animation coming out more People will realizse that this one is quite a good one. While Season 3 is less conistent with its Quality and the Tone of its Stories, it’s probably the most interesting Hartnell Season because of it.