Nicki's place is great. Awesome location in a great neighbourhood. I arrived early and forgot to message Nicki and she was great to let me leave my luggage while I went to get a drink on a patio.
The place is very spacious and is very comfortable for 2 couples since the bedrooms are on opposite sides of the apartment. Despite the room being on a pretty main street, it was not loud at all so don't worry about noise. There is a balcony that we didn't end up using because it was cold in the mornings, but I imagine it's really nice when it's warmer.
The washroom is pretty small (toilet is in separate room from shower). I'm not a tall guy (5'9") and had a hard time closing the door when seated. To be honest, it wasn't that big a deal, but if you're very tall or if you're there with another couple, it may be an issue.
There are quite a few steep stairs (maybe 15) to get to the door so keep that in mind if you have a large suitcase. Best to bring a backpack ;)