Magnolia house is like a hostel with multiple rooms and one shared bathroom per floor (can get quite busy when all rooms are booked, for our stay it was OK).
The room itself is rather small but everything was clean and it even has a fridge in case one wants to cool food/drinks.
Location is very good with direct train connections using Path to World Trade Center and 33rd street from Journal Square, which is less than 5 minutes walking away.
Elizabeth as a host is super friendly and very helpful. We could store our luggage safely in the locked room for a few hours longer than actually booked, which allowed us to spend another full day in NYC without carrying all bags with us.
One suggestion to make the stay even more comfortable or a tip for everyone coming: bring yourself a mirror as the only one available is in the bathroom and other guests might get annoyed when you block this for too long ;-)
Altogether, the room is good when you plan to stay for a couple of days and especially when flying from/to Newark airport