Very beautiful. The amount of work invested into the original model must have been tremendous.
Absolutely recommended, especially if you prefer a realistic look over the many cartoonish maps available.
I recommend using a laser printer for best results. Note that the tile size is just a bit too small. I measured 2.3 cm per side - about 10% smaller than a standard inch (2.54 cm).
Summary: 4/5, would buy again and will buy more from the artist