An ugly coop to me would have skinny chickens, holes in the sides for predators to go in, no food or water or foul food and water and no real protection from the elements or anywhere for dust baths and scratching and roosting. While I'd like my coop to be prettier, it is really just a silly urge we all have to make everything "cute". It depends on why you have chickens I guess. Ours are to provide us eggs and occasionally meat and our coop is not fancy, but I like it because it works and we did not make a silly investment we could not afford, you won't hear me complaining about 900 dollar eggs.
We did paint our whole coop which improved the look of recycled parts immensely and hopefully make it all last longer, too, but we used paint leftover from the hardware store where someone mixed the wrong color and returned it. Sorry, Im brain dead about uploading photos....