We loved our stay at Gamazo 4 - the apartment is perfectly located, Calle Gamazo is packed full of great little bars, and the Cathedral / Alcazar / Bullring and more are all within 5-10mins walk. It's a perfect base to explore Seville from.
The apartment is 100% as the pictures, beautifully appointed and immaculately clean. And despite being on a bustling street we experienced no issues of noise in the flat whatsoever. The only minor thing to be aware of is that the hair dryer, iron and hangers listed were not present so if you need these for your stay then do check that this has been remedied. The TV is wifi enabled which is handy, meaning you can log in to your Netflix / Amazon Prime account for the duration of your stay.
If returning to Seville we wouldn't hesitate to book Gamazo 4 again, it was just what we were looking for!