Julianna's place is great for a family stay. We are a family of 4, with young children, and the location was perfect! Don't be concerned about any noise from the trains, they are electric and there is none. It's a very quick trip into central Copenhagen and to/from the airport.
There are supermarkets very close by and open late. Very convenient.
Julianna was an excellent host, both before and during our stay. She was easily contactable and responded very quickly to our questions.
I recommend a stay at Julianna's place!