Pros:
This place is exactly as mentioned in the description. It is very cosy and small, but extremely clean! The host ensured that it was spotless and it smelled lovely.
There is one small double bed and a sofa bed. So four people could share. All the bedding was clean and the host gave us plenty of towels to use. The kitchen is fairly big for a small flat. Again a clean and tidy area to eat and drink. We were allowed to use the equipment minus food and drinks. There is a shower and toilet, again it was spotless and tidy. Added bonus of underfloor heating.
The host was always around to answer questions. We checked in with Sharebox. The host left the keys at a local 7eleven. It was very easy to check in.
Cons:
It is a little further away from central Copenhagen, but a short metro or bus ride. We took the metro mostly.
The host definitely needs to change the mattress as it is too old and there was a dip in the middle, which made uncomfortable sleep. The sofa bed was uncomfortable as well. We did not sleep well the two nights we stayed there unfortunately. The duvets need to be wider, especially for people who are a little on the plus size. My sisters struggled.
Finally, be weary of any extra charges. Make sure to ask before booking, for example, charges for checking in after the time indicated or accidental damage. Make sure everything is in writing. Airbnb state that no host is allowed to ask for money.