A beautiful apartment in the best part of Copenhagen, we loved the balcony and the ability to cook in the small but well-equipped kitchen. very clean and cozy. Gustav was excellent in helping us when we lost our key during our long stay, and even stored our luggage for us when we checked out for 2 days and then checked back in. Amazing! As to check-in, the key was in a lockbox you need to open with an app, and it requires to be registered with your phone number since it uses text messages. Because we switched SIM cards when arriving in Denmark, our new phone number didn't work with the App and we couldn't get the key out of the box. It took some time but the excellent Customer Service of the app assisted us in unlocking the box. Overall we had a wonderful time at Gustav's place, and we highly recommend it to anyone