Enjoyed our stay in Yaiza's apartment, sitting on the outskirts of Valencia with a 15 minute metro into the center. The only downside is that the flat is unbearably hot in 30 degree temperatures as there is no Aircon or ceiling fan. After 1 night of no sleep we had to purchase a second fan as the provided was poor and didn't cool us or the room down at all.
The pool is a great feature, however if you are intending to sit by the pool for majority of your stay just be warned that there is nothing to sit on so you will be sat on the floor.
The location is pretty good as it is located close the Science museum, Aquarium & a shopping centre but there aren't any restaurants close by meaning you will need to get the metro into the center in the evenings.