We stayed here for a month and found that this area is the best one in Seville - you have restaurants, clubs, coffee bars, rooftops, all in one lively square which is a 5 minute walk from the apartment. It's also a pleasant walkable distance to the city centre or a short Uber drive. Since we work from home, I must say that the internet speed is remarkable here (upload and download were both around 400).
The apartment is very clean and convenient. If you're staying for a longer time like us + work from home, keep in mind that having more than 2 people will make it a bit crowded.
As for the host, Ramon, have no worries- he is genuinely nice and will be there for anything you need. He went out of the way to help us with everything we needed and to be the friendly face you need when you arrive and throughout your stay.