Very happy with our apartment in Sevilla, the first thing to say is that it is very generously sized! As a family of four (2 adults, 2 children) the space was appreciated as the kids got separate rooms and my wife and I were able to stay up, watch TV and have a drink whilst they went to bed, which isn't always possible in some apartments we've stayed in.
Bathroom and kitchen facilities were clean, modern and well-kept, the shower was pretty good and nicely sized. We had a decent sized kitchen too with washing machine and and a dishwasher, so we were able to self-cater, however there was only one dishwasher tablet and no laundry detergent left for us, so we had to purchase it ourselves.
One draw for this apartment is the rooftop pool, however be aware that this is a 'dipping pool', ie very small and just really useful for sitting for 15-20 minutes, rather than being there for swimming purposes. The rooftop patio area has sunbeds and is nice but can get busy in the afternoon, although I can't recall an occasion where we didn't manage to get at least one sunbed.
Finally, location-wise, this is a great spot too, where you're a five-minute walk from the main shopping district and maybe another two minutes from Las Setas. The Cathedral and The Alcazar are a little bit further but easily walkable for most. Be aware that the streets immediately surrounding the apartment are quite tight with narrow pavement, and sometimes it can be a little tricky to see cars coming around the corners, so be careful especially if you have a pushchair/pram, although the cobbled roads do make it easier to hear the cars coming.