All in all, a great stay. The common room is just beautiful, and the kitchen was stocked with the items you'd want for a couple-day stay. (the balcony was lovely, but as with all balconies, I looked out twice, then ignored it.)
The bathroom was particularly nice. You can tell it's been updated recently. There's also a washer and dryer that actually dries your clothes (which seems rare for Europe.) It's also ridiculously spacious.
I had a couple of minor problems, so don't expect perfection. But it was pretty great, and I'd definitely recommend it to anyone coming to Seville that needs a three-bedroom place.