I had it, statwise it was probably harder than pimd considering you needed at least 1 other player to grow. Wars were more fun and easier and you didn't need to wait 45 mins for a regen.
You wait an hour for regen, and maybe that's why the game died. Nobody wanted to buy regen restoring items and they gave too much free stuff via video watching.
I never watched videos, I picked up enough ec from adventures to buy all the ec items I needed. And yeah. That and there were huge glitches that were never fixed.
I never played the game but I heard if you played HSH for seventy two hours straight, you start suffering from medical issues.