No, I don't find them ugly. The curved grill cage gives them a bit of character, in my opinion. Resemblance to a breadbox adds to the charm.
https://www.audioadvice.com/content/2017/09/25/primaluna-prologue-premium-review/
https://www.audioadvice.com/content/2017/09/25/primaluna-prologue-premium-review/