We had a great time in Valencia and Valeria's flat was one of the reasons.
Description is accurate, appartement is big, clean, have all that you need to enjoy a nice family holliday. The Cabanyal beach is a 5 mins walk and the AC and high speed internet are perfect when you want to relax at home. For your groceries look for DIA supermarket Wich is 6/7 mins from the apartment.
For families with kids there's toys for the kids (we left our beach toys there for future families to enjoy), a baby chair, a folding baby bed too, a great Umbrella for the beach. One detail for families with kids, the flat is on the 4th floor, the windows and the 2 little balconies (lounge and kitchen) are low, it's pretty regular in spain.
Our kids are not the adventurous type so we were not worried but if you have cute little devils you might want to warn them early on to not play with the windows :)
Again we are super happy to have booked Valeria's appartement and it will be our first choice when we will come to Valencia!