Rafa & Jorge place is simply the best. First of all we could checked in at 1 am, Rafa waited for us and showed us around the apartment. There are around 5 other rooms, kitchen, living room and two bathrooms. You have everything you need (iron, hair dryer, small cosmetic mirrors, towels, shampoo, etc.) Check out was also smooth and we could left our stuff there till the evening because we had late flight. Apartment is big, really clean and in the best location. View from the blacony is so beautiful. We were staing in the room with private balcony (there is also one balcony from living room). Breakfasts there were really nice. You are in the city centre (old town) and most places are in walking distance. Apartment is next to the Central Market. In the same building there is Clinic where you can do Covid tests for airport. 5 minutes walking distance away is bus stop (line 150) that goes directly to airport (20 minutes drive) and costs like 1.70€ per person if you purchase it in advance with your flight. You can rent bikes/scooters also 5 minutes away from apartment for a great price. We rented them for our whole stay and would do it again. Although you can't leave them in the building or in apartment overnight. For bikes it is safe to leave them on the street for the night, or even better at the rental place (our experience). Valencia is relatively safe city, people are mostly really nice and helpful, they speak english better than in Barcelona.
We suggest you to visit Casa El Famos for best paella and cheesecake there is (restaurant is not in the city, although is still in Valencia it looks like a village and you can experience true spanish vibe). Restaurant is not meant for turists so menu is in Spanish and staff speaks only native language. We also liked Bacaro, Èter and night life on El Carmen street (Fox Congo and others).
So in conclusion we will definitely come to Rafa & Jorge place again when we visit Valencia.