Immaculate apartment in a lovely location, with a fantastic roof terrace. The place was well maintained, very clean, and everything worked well. Comfy beds, ample cushions, good kitchen, washing machine. We loved breakfast at one of the bars at the end of the road, and head north to San Lorenzo or Feria for tapas. Very near the gallery too. Unfortunately we had noisy neighbours upstairs but you won't hear any noise from the outside despite its central location.
My only complaints: I know Seville is very sunny but we could have done with an umbrella to borrow (other serviced apartments have one I think) for the days it rained. Perhaps the apartment could do with a few hooks too, for hanging jackets, towels etc.
Also the communication was a bit hit and miss - at times, my messages went unread for several hours, and/or took a long time to reply to - particularly with regards check in. But I think this is simply because you're dealing with a company rather than a single host.