We have had a great time in Helles appartment. We stayed with 2 kids and one baby, the appartement was spacious and clean. Helle and her husband left a lot of closetspace for our personal belongings, even in the kitchen. This was a real treat for us, as we stayed a month.
The gated courtyard is a real gem! There is a lot of traffic and crowd in the streets surrounding, which can be challenging with kids. But the courtyard makes up more than enough. There is lot of space and playgrounds there, the kids had a lot of freedom and we could easily check up on then by looking through the window!
A few things are different than pictured. For instance, there now are doors in the kitchen to a balcony that also gives acces to the courtyard. That was a really nice surprise! And the second bedroom now has two high sleeping beds instead of a bunkbed (which our boys loved;)).
The neighboorhood is really downtown, with a lot of nice restaurants, takeway, supermarkets and shops. And the nicest playground of Kopenhagen is just a few minutes away. In short: everything you need, we really recommend it!