This place is so well located, right in the heart of the city, easy walking distance from everything, especially some of the best restaurants. Check in and out was easy and very hospitable, and everything we used worked fine. There's even a helpful collection of brochures for events, sites, and excursions all around Seville. The decor is very chic and tasteful, the bed and sofas are all comfortable, and the balcony gets good sunshine in the morning.
There are a fair few stairs involved, and the location, Spanish social hours, and not quite airtight windows mean it can be quite loud quite late. It can also get a bit chilly (again, partly because of the window seals) but there are plenty of space heaters around, and you can always bring the duvet to whatever room you're in (plus we were there in February, so it's to be expected). The front door can be a little tricky, and needs a firm hand (as do the bolts). Overall, the issues are very minor, and the value is great. Definitely a top place to stay for a romantic getaway for two.