Thoroughly enjoyed our stay at Nacho's. It has a open feel with tremendous light day and night. We found Seville to be more "city like" than many of the other areas we visited in Spain. There is more hustle and bustle as well as honking and other city noise so this quiet location in Triana is especially good to retreat to in the evening. It has a beautiful view of the river and the city lights daytime and nighttime. The apartment is a large space and the building is quiet. It avoids noise of the city as stated above. It has a unique elevator that opens up directly into the bedroom giving it a luxury feel. The air conditioning works very well but the ability to open the windows widely in the front of the unit to enjoy the views also let in fresh air as a great alternative. We were met at the apartment by associate and were given good information. Nacho was responsive to our questions by text appeared
Triana has its own separate vibe and is fun to walk around at night if you don't want walk back to the city (which is still very accessible and easy to get to). It's an ideal location for a couple wanting a wonderful holiday. It is large enough for more people, but of course it has a single bathroom and I imagine could be a bit tight to get out of the unit to enjoy the day efficiently. Also, there's no bathroom fan to vent steam and odors. It's not really set up for someone who wants to cook, though I did suggest a slight alteration in the set up to our host making it a little easier to get a quick breakfast in the morning.
Other considerations: if you want to take a taxi directly to the unit it gets a little circuitous due to the one way street. The cost from the train station probably between 10- 15€ depending on traffic. Use of the bus I think is not practical. If you ask the taxi to take you directly across the San Telmo bridge to the Plaza de Cuba you could walk down the street along the waterfront for about a block and a half and the cost would be less than €10.