I wanted to report than one cannot replace the underground pipes with the upgrade planner contrary to the regular pipe. Then read the discussion in case it was reported already and notice that SloppyEngineering is not doing factorio anymore. I like the mod in its actual state, still i'm playing without pollution, for the infinite ressource out of sun and water. I like the 3 tiers , it makes sense to redo production lane for each tier rather than just upgrade, the latest one with modules are so much more powerful than the early bioreactor or photosynthesis pannel. The yield of wood is very high, it combines well with other mods that allow further use or transformation of wood. All the new things are well organised in their own pannel, many receipes once built properly are super productive and they are alternative receipe to original one, so it tend to make the game no harder at all since they are avoidable, only easier, especially in late game once everything is figured out.