I would recommend accumulators start at a value of 1024 and then follow the standard 2X upgrade cycle. Otherwise the fancy towers are useless. Also let warehouses only supply 1024 of a resource to an unconnected factory, with the standard upgrade cycle. But multiple warehouses could provide resources, 4 level 1's could supply 4096.
Once you understand the mechanics and do the grind to open all the resources, it gets ho-hum pretty quickly. Needs some kind of antagonist to hold my interest more than a few days.