We had a great experience staying at Myriam's place.
Everything was clean, breakfasts were extraordinary (different everyday - tortillas, tosts or scrambled eggs, apart from this fresh, delicious fruits, something sweet - piece of cake or joghurt and natural orange juice + coffee).
We loved the location - just a 20 minutes walk to the old town (torres de serrano). We felt very safe, even when coming back home at night.
Cats are super friendly, we will miss them! :) But we encouraged them to contact with us, if someone doesn't, they will probably stay out of your way.
Bathroom is outside the room, but we were the only people using it during our stay. Its just next door, so it was not a big deal. And everything was very modern and clean.
Also, our plane was delayed and we came to Myriam in the middle of the night (2:30), but she was very nice and reassuring, she didnt let us feel nervous about this.
If we come back to Valencia (and I think we will), we will be happy to stay here again!