I was very happy with my stay at the Wallace apartments in Valencia. The only downside was that you don't check in at same location as the hotel - the front desk is a couple of blocks away in a different building. While there was a sign on the door explaining this, it was in Spanish, and in my jet lagged state, I didn't understand it very well. Fortunately, the folks at the bar on the first floor took pity on me and helped me out.
I fell in love with the room when I walked in and the temperature was set at a very comfortable 18C, which was fantastic, since it was a very humid 85F outside and I had just finished walking a couple of blocks with all my luggage in order to complete the check in procedure. The apartment was in a great central area, was very clean, and had everything I needed to have a great stay. Very fast wifi, by the way, which was hugely helpful as well.