Quite often it's just "more health" aka "nothing".
Here are just some:
- quality belts are not faster
- quality underground belts/pipes don't reach further
- quality locomotives and cars are not faster
- quality cargo pods, chests and (fluid-)wagons all don't hold more items
- quality boiler, nuclear reactor, and turbines are not more efficient. Just consumes more with same ratio (Always better to just build more)
- quality agricultural tower just has 'more health'
- quality cliff explosives have higher throwing range instead of higher AOE (no point)
- quality Offshore pump doesn't pump faster
And most importantly:
- quality atomic bomb is not bigger, just more damage. Everything dies anyway.
If the game lets me make a legendary Atomic bomb, I want a legendary Atomic bomb pls
![Smile :)](./images/smilies/icon_e_smile.gif)
Right now, these quality items ^^^ provide no value. Maybe you can just make that a little more exciting.
![Smile :)](./images/smilies/icon_e_smile.gif)
Much Love <3. Awesome Game!