This apartment is in a very popular area (Triana Square), right beside the bridge and the mercado. If you are up for walking, it is a great location as it is an easy walk into the old town area where all the popular things to see and do are. The apartment is nicely appointed with everything you need and it is very clean and comfortable. The air conditioning worked well!
You can sit and people watch from the balconies (there is a small table and chairs on one of the 4 balconies) at all hours of the day and night and you even have a nice view of the Geralda Tower of the Sevilla Cathedral. The apartment has wondeful shutters to close out the light and help close out the sound but it is still a busy street with lots of foot and car traffic, especially on weekends, so if you are a light sleeper, a white noise machine or ear plugs would be beneficial. There is no elevator, which was no problem for us but just be sure you understand that going into it. You are on the 3rd floor with floor 0 being sidewalk level so 4th floor in US terms. As long as you understand both those things, you should be very pleased with this apartment.