Helena's place is very nice it's exactly like in the pictures. I was able even to work remotely from there. It's also in a really cool area, right next to the subway and lots of bars and restaurants.
The place is extremely clean and she's very discreet, quiet, polite, friendly and extremely easy going.
Overall it was a pleasure to stay at Helena's place and I feel I have been very lucky to find this place. I totally recommend it.