Excellent location!
Five or six minute walk to El Corte Inglés, and an amazing park just up the road. Take the subway or walk. both are very good options. Getting around and to the very touristy part of town is easy though you are not in the midst of it.
The place is very large, the pictures do it justice. The only downside is there has been a bit of construction while we were there, but they kept it to the daytime, and we were out most of the time exploring the city. Kitchen was well stocked, and we were able to cook meals easily.
Even with the construction, we would happily stay again.
Excellent hosts, and even allowed us to modify our checkout.