Nacho's place is in a perfect location to enjoy Seville. You really get the flavor of living in an older Seville place before "open concept" was a thing. Every function has its own little room. It is SO walkable from Nacho's place and right by the river. We went to the Ceramic Tile Museum that was around the corner that we probably wouldn't have done if we hadn't stayed in Nacho's place (we learned so much about tile that we used in visiting other parts of Spain). There was a Yoga studio steps away. There was a lovely Tapas restaurant just past the Tile Museum, on the same side of the street. The apartment had great internet and was on a side alley from the main, very busy street. Right across the bridge was a gazebo kiosk with the best churros! Down the same street as the bridge was a huge Decathalon sports store (such great prices! -we don't have them in the States yet!!) and tons of shopping and restaurants. There is also this fantastic structure that you can walk on and get a view of the city called Las Setas (The Mushrooms). Don't miss it! Also don't miss The Mercado de Triana just steps from the apartment. Fantastic eating options. Much better than the restaurants on the main Triana street. I had the best seafood paiella there that I have ever had! Go there for breakfast too. Amazing pastries and coffee.
The old city is a 25 minute walk but the walk is really interesting if you meander through the small alleys, chalked-full of stores and cafes and churches and plazas.
Spain has such a wonderful plaza culture and Seville is no different.
That being said, I need to note a couple things about the listing (though not to discourage people from staying here):
1. The balconies are not large like it says. You can get maybe two feet on them. (They are wide and maybe it was just a bad translation from the Spanish?)
2. The place is smaller than the pictures make it seem.
3. The alley street that the apartment is on is adorable but noisy.
4. The Flamenco show that Nacho can get tickets for was not the best Spain has to offer. It is in a very cozy theatre in the Open Market but the players change all the time. (I think that is why the reviews are so inconsistent.) Unfortunately, we were there a night that the singer couldn't stay on key. I encouraged Nacho to get a more consistent show to recommend.
All that being said, we had a marvelous time and can't wait to come back to Seville!