This is a pretty upscale hostel based on my experience, everything is top notch. The private room I stayed in was great, the bed was really comfortable, room was somewhat small but more than enough for a solo traveller. The hostel itself is clean, modern, and staff is really friendly. Just a 10-12 minute walk from the cathedral and the giralda too! The rooftop is nice, although without any nice views per se, just great to hang around... the area is very upscale and touristy, there are some budget restaurants and tapas places around but you have to look for them.