hello everyone, i have a question regarding upgrade in slavebar. i don't know the function of upgrading milking parlor.
for example like if we upgrade cleaning station, we could clean male fapet, upgrading milking storage can increase miliking capacity,and upgrading bonding machine allows us to use more item when using it. but i don't know the function of upgrading milking parlor except getting a new look. can someone tell me the function of upgrading the milking parlor?