Excellent host and hostess!
The apartment is spotless, stylish and has plenty of room. Alejandro has thought of everything, so you will not want for amenities.
After spending three weeks there, it honestly felt like "home" to us.
The neighborhood is the BEST choice for travelers, especially if you have a car, as trying to park in Sevilla is next to impossible. We parked in the apartment's underground garage (be sure you have a SMALL car), and either walked into the city (an easy and quite enjoyable 10 minute exercise), or there are many buses that run everywhere, that stage right near the apartment.
The restaurant/tapas scene in Triana is simply wonderful. Follow Alejandro's recommendations, and you won't go wrong!
And, BTW, in a city full of Mercados (markets), the absolute best is just down the street from you - the Triana Market. Check it out, you won't be sorry!