On the plus side, The place is huge! There is a lot of sleeping space and a full living room. Ruben is also great at responding quickly and he is very friendly and helpful. We did have some electricity issues with the breaker tripping 3 times, but Ruben was immediately reachable and told us what to do.
Other than that, things we didn't love were the tiny shower, that the walk to the city centre was further than anticipated (30 mins) and there wasn't an elevator.( I believe it was the 5th floor.) Also there was noisy construction outside.
All in all, we enjoyed our stay. Valencia is a beautiful place.