Overall, the place is as described.
It is a short walk from the metro (less than two blocks I believe) which was super convenient, too. The neighborhood did look a little sketchy, though - dirty with trash all over street and sidewalks, but l didn't feel concerned about my safety when walking to the house from the metro at night.
The temperature in the house is quite warm/high. It just retains a lot of heat. I was there at the end of September so can't imagine what it's like in the summer. But there's an AC in the room.
Cleanliness in the bathroom and kitchen could be improved - Hair around the bathroom floors, food leftovers in the kitchen sink drain, and some dust around the bedroom nightstands, but overall was okay.
The lockbox was easy to use - the instructions were clear and I received my code a few hours before check-in. There is a tall, steep staircase to get into the apartment, so keep that in mind if you have lots of luggage or have trouble climbing up and down.
Her kids were also quite friendly to me, especially her eldest one. And Basia would kindly ask about my day whenever we'd meet.
Overall I think this was good value for money and would recommend her place for a quick, short term stay.