Why locals love it
This place serves appetizers and darn good ones! They also have good wine menu and a nice selection of Icelandic brewery. The appetizers are the attraction though. Perfect place to bring your loved ones, as things rarely get messy and there is always room for deserts.
Why you should visit it
It's a fancy place for fancy people who seek a fancy night out. If you want to please your taste buds with some amazing appetizers, then this is perfect. If you want to stuff yourself, then look elsewhere - otherwise this is gonna cost you a fortune.
Take some risks. Some combinations on the menu look like they cannot work, but they probably do.