I was looking for a month stay in Seville to work remotely - this top-floor studio worked really well for me and the hosts were fantastic. Its a very bright, pleasant studio (bedroom / living + a bath and kitchen slightly off the main space) with a great rooftop patio right out the door. The patio is on the north, so in the summer I'm sure it stays nice and shady. I was there March/April so was a bit cool - still really nice though, and got plenty of use out of the patio. The kitchen is small but functional and has lots of cooking utensils, plates and silverware. It worked great for me.
The apartment is on a quiet street near the Alameda de Hercules and easy walking distance to everything in Seville. Even though I was working while I was there, it was still very easy to hop out for a walk everyday, being right in the middle of the city. There is a decent fresh-food market nearby (Mercado de Feria) which was great, and plenty of small grocery stores nearby as well. A very convenient spot.
The only small caution is that I did have some trouble with the internet speed while there. It might not be an issue for others, depending on what you are doing, but certainly for me: running 'zoom' calls with multiple people in the US was very, very challenging and I had lots of dropouts and issues. When I tested the speed to local servers it was actually pretty good? So perhaps its just a EU<->US thing, but I had lots of trouble with it doing video calls to the US, for whatever that is worth. It worked fine for normal use, music-streaming, etc... it was really just the video calls that didn't work for me. I ended up using my cellphone to call in most of the time, which worked fine though. Luckily I don't do a lot of that, so it wasn't a huge issue.
Overall though it was an absolutely fantastic spot, with great hosts, and I would gladly go back without any hesitation at all.