negatives:
the two chairs arrived with three blemish areas in their black powder coating: 1 small gash, one large gash (thankfully now under a cushion).
when i started to unwrap the frames a lot of extra black powder came out. i moved them back into the box to unwrap and avoid getting that everywhere.
securing the backrest was more difficult than it needs to be. i needed to put the screws in unattached to see how they'd align - they were generally oriented more inward than i expected.
lastly the "platinum" color was not what i expected. it's more grey than the cream i expected from the main picture. the other pictures are truer, and the color is very lighting dependent.

neutral: the backs alone have zippers for removing the cover. i'm very skeptical about the results of taking it off. i'm afraid the felt won't last - i'll find out eventually. the seats have some spring, but not so much that it's annoying.

positive: they're very comfortable and look great, very stylish and unique.