The location is very convenient, close to all good restaurants, great coffee shops, major attractions, and bus/trains. All the places people recommend are in a walkable distance and even going farther away to the port or to the beaches in the Riviera wasn't that bad, 10min walk + 30min bus ride.
The apartment itself is great, the bed is good, the kitchen is well equipped with a washer/drier and the bathroom is amazing.
The only downside is the noise from the street as well as from the building, but it is not a big problem - I'm a light sleeper and I was able to sleep well enough. It only becomes a real problem when the restaurant downstairs has live music (which happened on Saturday and Wednesday in the week we stayed there), it is really hard to get any sleep until 2am.