Veronica's apartment in the old town is in an excellent location for visiting Valencia. We were able to walk everywhere, and there are many wonderful places to see within a few streets. The apartment is lovely, large and well equipped, and was spotlessly clean. We particularly enjoyed sitting on the balcony. There is an elevator, though you need to go up a few steps from the entrance to get to it. The check in was easy and straightforward.
It's important to be aware that Placa Redona is a busy place with bars, shops and cafes, so there is some noise. Also on our first night (a Saturday) it was being used for a private party which meant a lot of noise until quite late. Of course, this is nothing to do with the hosts and we don't know how often this happens. It didn't particularly bother us, but if you're a light sleeper, maybe bring some earplugs. It certainly didn't spoil our time in Valencia, and it was definitely a five star stay.