This flat is a nice modern place, most suitable for a couple, no more for best comfort. It is situated just 200m from the Turia, so if you like to enjoy this space it is very close; we like to run, walk or cycle along the Turia so it was ideal for us. In the other direction about 200m is the start of the old city's night life with lots of bars and restaurants, as well as all the main sights.
On the other side of the Turia about 15 minutes walk, just after the Valencia main bus station, is a shopping centre with El Corte Ingles, large Mercadona, many of the usual stores, and lots of food outlets.
Felix will direct you to the local supermarket, Consum, which is a 10 minutes walk and well stocked with essentials and more. You can buy fresh milk which is often difficult to find, in this store. There is a small market within 5 minutes walk for fresh fruit, veg, fish and meat, although we always go to the Central Market which has an abundance of fresh produce at very good prices. The Central Market is just 10 minutes walk, a must see even if not buying food.
The Internet is reasonably quick and I measured it at 30 mbs download, it was stable and reliable and we streamed TV fine.
The flat is quiet as there are no bars on the street; we did have a little noise from the flat above but not excessive, the owner obviously gives piano lessons and some students were quite good! The bed has a foam mattress and is comfortable (it is latex as opposed to memory foam).
Like a lot of Valencia, there is a quite a bit of graffiti about the area and this may not give a good impression, but the neighbourhood seemed fine to us and we never had any concerns going out at any time of day. The flat is very secure and safe to leave belongings.
We would use Felix's apartment again on another visit to Valencia.