In the nice neighborhood Yungay, very close to the park, we enjoyed ourt stay in the cosy appartment of Andres. The very clean appartment is on the 5e floor of a appartment building with elevator. The appartment has all the features for a nice stay. It is on walking distance to the centre of town.
Andres is very nice/flexibel and very quick in answering your questions/problems.
We certainly can recommend this appartment when you consider to visit Santiago.