I visited the SAS Lounge Copenhagen after my inbound flight by SAS was cancelled (well ahead of time) and I rebooked myself on an earlier Star Alliance flight. 

The SAS Lounge Copenhagen is open to SAS premium passengers as well as Business Class passengers and Gold Card Members of Star Alliance.

The lounge is decorated in a mix of urban and rural styles with well known Nordic wood furnishings. There was a comfortable seating area and  plenty of communal tables for working or enjoying a quick bite. 

This no frills lounge offers all-day buffet breakfast items, a few healthy dishes such as beetroot or chickpeas salads as well as a soup and the famous Swedish meatballs. Bread was also available but no desserts or sweet items were offered. (Maybe they follow a healthy life-style policy)

No announcements are made in the lounge and depending on the time of day it can become a little crowded.(Note that Scandinavian has drastically cut back on their long-haul network and is struggling financially. A number of their North American destinations are now operated by narrow body A320/321 aircraft and they have pulled out of the Asian market completely.

I had a comfortable and relaxed stay at the SAS Lounge in Copenhagen. 

https://www.flysas.com/th-en/travel-info/at-the-airport/lounges/