This map makes it easy to distinguish major roads from minor ones, which is very important in Iceland because some "major" roads are unpaved and some minor roads are only for four-wheel-drive vehicles. What I liked most about the map was its use of icons along roads to indicate waterfalls, caves, lighthouses, museums, geysers and geothermal features. This made it like a mini-guidebook and ensured that you didn't drive by something interesting without knowing it. In addition to buying this map, I also bought one by Cartographia. After comparing the two maps, I left the Cartographia at home because the ITMB map was so much more detailed and easier to read. Finally, after the two-week trip, I appreciated how durable (to folding and re-folding every which way) and waterproof this map was!