The apartment was lovely, very clean, and in a great location, right next to the cathedral. It came with a well equipped kitchen and cleaning materials. We were checked in by a lovely man called Jose Manuel, who gave us a map of the city and recommended us good places to go, which was very helpful for our visit. We especially liked the Alameda de Hercules, which he recommended when we asked him for good nightlife/less touristy places to eat/drink in the evening. We ended up going there a lot.
The apartment was gorgeous and the bed comfy, but there is no window in the bedroom. This can make it a little hot at night. It also faces the inner courtyard of the block, so it doesn't get a lot of sunlight. This wasn't a problem for us as we were out most of the day and as it was February wasn't too hot, but might be something to consider :)
Thanks so much Nacho, will definitely be coming back next time we're in Seville!