I rented this appartment for my parents to stay for a few days. Our communication was excellent. I recommend to stay at Olga's place as it is very well located. I picked up my parents at the evening and Olga was very nice to letting them leave their luggage until 2.30 pm.
My parent's feedback:
Квартира светлая, просторная, расположена рядом с метро, в удобном от основных достопримечательностей месте. Хозяйка общительная, доброжелательная. Рассказала нам, какие места можно посетить.