I definitely recommand Carla's appartment. Location is great with everything you need around the corner but the place is very quiet. Transportations (bus and metro) close but you can walk to the center in 20 mn (and what a beautiful sight it is). Place was very clean, beds comfortables, Carla's instructions very clear.
Only small issue is that the place is basically empty when you enter the appartment (apparently because of covid restrictions): no salt, sugar, oil, shower cream, coffee etc..