In 1.0 I played bobs+angels and ran on a 100 square cell structure

In 2.0 I've still only done vanilla, but I went with a 200 square cell this time for bigger trains.

My only regret is exploring south and not east or west
The creeping horror for other players is making them zoom in to realise the scale of the thing. Its a long time to traverse even with rocket trains and go fast legs.
Edit: I should have included a picture of one of the cells for scale