Its a great location - close to the bus station, supermercado and the city, yet very quiet being set up and away from the road. We travelled by Airport bus to to Plaza de Armnas bus station which is very close to the apartment (although you can take a cab for 30 Euros).
Comms with José was good: we told him what time we were arriving and he was waiting for us in the street opposite the apartment and showed us round, which was a nice touch.
The apartment is well appointed, very clean and more than sufficient for 2. We did a mix of self catering and eating out - everything was on hand. By comparison with UK, food and drink was very reasonable with wine only slightly more expensive than Coke Zero!).
We walked a lot and didn't use public transport (from José’s place you can get the bus) although the metro or tram is a way off. This wasn't an issue for us as all tourist attractions were in walking distance.
We spent a day in Cadiz (travelling by train from Santa Justa Station, this is outside the main city but only 7-8 Euros by taxi from José’s place) and if you are staying for a week, you might want to spend 1-2 days outside Seville.