Alexandra's home is located in a less than 10 minute walk to the subway; we never arrived back terribly late (before midnight) but always felt safe walking to and from the apartment. The kitchen is well stocked for cooking your own meals, be sure to check the cabinets and refrigerator before you go shopping, it looks as if many previous travelers have purchased things and left to contribute. I made breakfast daily and cooked dinner one night and found all tools/appliances/cutlery needed.
While the apartment could sleep many (couches, chaise, etc.) there is only one bed so if that's a comfort you need, please consider your sleeping arrangements. My teenage son slept on one of the couches that folded out flat, but we did have to layer it with several blankets to make it comfortable for him. He did sleep there for an entire week and turned down my offer to let him share the bed so he must have been comfortable enough.
The walls (really floor/ceiling) are very thin so if noise is something that bothers you, you'll want to come prepared. Alexandra thoughtfully sent me a message one night when they were hosting a sleepover for their daughter but all the squeals and chatter settled down at a reasonable hour. You can, however, hear whenever someone is walking around upstairs, voices talking, dog barking and even when someone used the bathroom. I'm an extremely light sleeper but came prepared with ear plugs and an eye mask so I was able to block it out when needed. However, I was overly concerned with how much they were hearing us since I could hear them so well and was constantly shushing my son which probably got on his nerves!
Overall, we enjoyed our stay very much. Checking in and out was a breeze, the apartment was clean and tidy and the location ideal.