My name (Taiine) as a seed provided a boring landscape at first. But soon found a open lava lake by the river and just south were large hills with over hangs and one of the LARGEST tundera biomes I had ever seen. along it is a small valley in the middle of some tall mountains that is of a forest biome. So it's sort of an oasis with in the frozen lands.
My name produced a seemingly ordinary world, until I discovered a cave system, the vertical shaft at 122 -192 leads into a cave system that goes down to about Z 12, there is also a sunken dungeon close by, ( hint: look for the beach....), not gonna spoil the unusual nature of the vertical shaft, it has a feature that amazed me the first time I saw it....
rolypoly43 is pretty cool.
You spawn in a snowy biome near a mountain with a flat face.
Below it is a frozen pool.
I haven't had time to explore more, but i'll have a look around.
I would post some screenshots, but my computer is acting up, so I can't