I lived for almost a year in Norway, near Oslo, and visited Gothenburg last year for a weekend, but didn't liked that much the long days of summer. I was going at the beach at 8 PM in Norway, but couldn't sleep good with all that light over the night. I do find also summer in there as being almost perfect.
Summer nights up north are special. I was a teenager the first time I experienced a warm dark evening! That felt very exotic.