Of the most impressive in Spain
Perhaps the fact that being half from there and having family there, my objectivity may be impaired, but along with those of Toledo and Granada (cathedrals I've seen), that of Seville is one of the most impressive and beautiful in Spain.
Since before Easter it has been undergoing an exterior remodelling process recovering the authentic background colour of its stone, whilst its interior pillars remain in process of repair.
For those who do not know or have not seen, besides the cathedral itself, the price one pays to see the treasure that lies at the side and the to climb La Giralda, I sincerely recommend, although you must be patient, as there are 36 flights of ramps (by the way, do not wear shoes that slide).