I feel like some more balancing is needed for the different tiers of weapons and tools. For many things it seems like Tier 2 weapons and tools get skipped over in favor of tier three. A purple stone shovel is better than brown steel shovel because it uses less stamina and still two shots dirt (Level 3 in both miner 69er and Sexy-Rex). I'm on Day 27 and am still using a purple stone axe for looting POIs. I have a yellow steel axe and a green pick axe that I use solely for cutting trees and harvesting. I have several yellow and green iron tools but I never bothered using them. This is partly because the purple stone axe is one less tool to carry around. I'm close to making an auger so even the steel pickaxe won't end seeing much use.
As to weapons, I have a yellow AK that does more damage than a yellow tactical rifle (Yes, the tactical rifle has a higher fire rate but I use the AK with a silencer for stealth kills so the higher damage AK wins out. It's also more ammo efficient. The TR is also bugged when using a 2x scope it with it. It takes longer to switch back and forth from aiming with the TR making it less desirable to use.) I just crafted a yellow M60 so not sure if the TR will see any use unless I can get a much better damage roll than the AK. As to the shotties, I have a purple double barrel which is much better than the brown pump shotguns I've found (+7 damage per pellet on the DB). Right now only Q1 pump shotguns are dropping for me so I don't know if the pump shotgun will end being skipped for the combat shotgun (haven't found one and can't craft it yet).
On one hand, it's nice that the primitive age lasts longer and that the primitive tools and weapons appear to have been buffed. On the other, it seems like the tier 2 weapons and tools that I've found are not enough of an upgrade to be worth using due to stats or stamina usage. That said I need to spend some more time with the iron tools though because I ended up skipping right over them.