Nan Madol is very nice with a costal civ or england (cough, have I said England is amazing enough on these forums yet, cough), because I think it works for harbors? If you have a harbor and costal commercial hub setup with a lot of cities it can be really nice. Otherwise its meh. I'd rate it situational.
Kandy might be nice on a higher tier game and that wonder that makes your apostles produce relics upon dying. Not sure how else you get relics though, I haven't gotten many of them, or maybe I have and I haven't realized it.
Kusami seems underrated, that can be insane if you start it in the early game and get a lot of trade routes.
Not sure I agree with Brussels, Hong Kong and Geneva, they don't seem too great, though they may be situationally good.
I've never gone for Hattusa, it seems like this person builds more encampments than I do, and are rating the encampment boosting districts higher than I would.
The rest of the list looks good for the most part.
