Our family (me husband and 18 month old) had a great time in CPH at Natasha's place! We specifically selected Natasha's apartment after reading many reviews that said it was great for kids. and indeed it was! We really appreciated the black out curtains in the 2nd bedroom (in May the sun went down around 9pm and up at 6am!), and the travel crib (random note: Danish travel cribs are longer than American ones!). Natasha also offered a baby high chair. The baby enjoyed a lot of Natasha's kids' toys. fidget spinner, push pops, and stuffed animals (the kitchen in the picture is no longer there). The apartment is on the 4th floor of a walk up building, which to Americans actually means the 5th floor. this was a lot of stairs, but we got used to it. We were able to leave our stroller at the base of the stairs after the first key entrance, so just had to bring up our suitcases which was doable. There is a washer/dryer in the bathroom which is a must when traveling with little ones (or clumsy adults). The shower is pretty tiny. There is a tiny balcony where you can sit but in May it was too cold to sit outside. There is Apple TV in the living room and the 2nd bedroom, and baby enjoyed watching BBC kids shows.
Natasha was incredibly helpful even before the trip started. She was incredibly generous with her attention and time, helping us figure out how to get to the apartment from the airport (super quick subway ride), and being very flexible with check in/check out times given our flight schedules. I texted her almost daily during our trip and she always responded very quickly. When we asked where we buy a toddler toilet seat, she bought one for us and left it at the door the next day! It is now there for the next small guest.
Location wise, we thought it was great! it's across the water from the main city center area, so we walked everywhere. We got 17K-20K steps in every day, and it was great. There is a supermarket across the street that we went to a lot, and Andersen bakery just down the street is AMAZING. We went there daily for breakfast/sweets. Baby loved their rolls (Tibolle and Hveder). On a rainy day when we had no energy or ideas for dinner, we got food from the Sandwich Shop on the same street and it was surprisingly delicious. There is a bike shop a block away where you rent a box bike, which we sadly did not have time for. We had a great stay and would recommend Natasha's place for anyone traveling with small children.