IMO, not worth the $$... map developer did a great job, but I've paid less, for better. I would have given if 5 stars except for a few things.

1. Its too expensive for what you get and don't get.
2. If your server uses any sort of teleportation plugin, don't expect /outpost of /bandit to work. Not sure what this dev has called them on the backend, but The Refuge (custom outpost) does not work, and even the bandit which is listed as bandit on the map doesn't work.
3. Lack of support or at very least a reply to a support ticket. I inquired into the teleportation issue, and there has been zero response. For a map this expensive, I would expect a resolution or response within a timely manner. Leaves me thinking if facepunches does more changes like they have recently, it could be a delayed fix. But just my opinion. 

First : it's not my first map tested on my server. OK.

Second : Maybe I think yahoo!!! This is ONE of the best of the custom maps I own.....

Third : HELHEIM ISLAND is a map seriously worked (thank you Keirox), with a lot of place of loot, working with several plugins to increase pleasure of playing this fabulous game. The dev upgrades the map and it's fine....

In 3 word : "A must have"... 

Such a beautiful map. Very refreshing take on rust!