I've loved the hell out the area Feliks90 and I settled this rev. Underground rivers running through massive cavern systems, towering mountains... I've never played a map quite like it.
The only issues with the world gen in this region (eastern mountains) seem to be the levels at which we find ores. Diamonds simply weren't appearing where they normally would, sometimes appearing anywhere between Y25 to Y30 but not below. This seemed to be localised to the most radically altered areas around the borders. Two sea levels, one at 64 and another at 90, was something that took getting used to but we're making good use of it for some unique developments.
The eastern mountains weren't overpopulated, leading me to believe that fans of this kind of terrain may be a minority. However I'd gladly settle the same type of landscape again. Underground grass hills are wonderful :D
