Probably should've put a review waaay earlier but..eh.
I love this map. I love the theme, the story, the creepiness when you manually switch to night time. I simply love huge cave systems and mine-related objects.
Even though its a huge map...it could always be bigger, better, creepier with more objects, facilities and 'homes', details, dangerous bridges, ridges, collapsed tunnels and wonky roads.
It's easy for me to say that this is my favourite map, of all time.
Any chance you're thinking of revamping or making another Deep Earth?