We had a wonderful stay at Gracie's. Everything was as described. The flat was bright, spacious and super clean. Location is perfect for site-seeing and 24/7 market and other shops are near by. We also felt very safe in Russafa at any time.
Side note for runners ;-) the appartment is only 1.5 K away from Ponte del Regne, which I found best to access Turia park. THE running spot in Valencia is illuminated at night (I guess all night) and much frequented. Also the harbour and beach are only 6 K away and worth while for a nice sunrise :)