Good when they're good - beyond appalling when they're bad.
Don't collect when they promise. Also if they're a bit busy they just lie that they tried to deliver when tracking shows the parcel hasn't even left the depot.
Left in a safe place? Sure - if your idea of a safe place is on your doorstep visible to any passer by.
Live chat? Hahahahahaha - a very poorly programmed bot.
One star is too much.