I highly recommend this place. The apartment is clean and comfortable and has nice views over the city and the mountains on the east side. The beds are comfortable, the bathrooms are nice, and the kitchen had everything we needed to make a few meals. Best of all, it has good air conditioning, which you WILL need in the warm months.
The location is great, with easy access to transit. And if you're going to the Fiera Valencia conference center, it's literally across the street.
The host Toni was very sharp and quick to respond to all of our questions, plus he easily accommodated our unusual check in and checkout times.
Overall, a great stay.