When I stick to the tutorial, everything is fine. But when you want to expand your base in your own way, it is complicated then.
Bug: I have planted all the trees I could, then finished previous step of tutorial. After reaching step "chop old trees and plant new ones" I couldn't progress. And since I was a new player, I didn't know what else I can do (f.e. buy/sell products) to fulfil the needs except waiting.
Anyway: GREAT GAME! :) I don't know all, but so far I have found hundreds of possibilities and the game seem to be intuitive.