I used to buy a coffee from time to time with bitcoin.
But I can't use bitcoin buying a coffee now, because the fee is so high, if I keep 0.0001 fee like before, it would take days for the transaction to get confirmed, I've got a transaction which took 11 days to get the 1st confirmation last month.
It's not cost-effective any more to buy (I mean both online and buying face to face) thing via bitcoin. And this is why I quit buy coffee with bitcoin.
It does not make sense to pay with bitcoin for orders that are shorter than 30 minutes. Because the payment will be confirmed within 10 minutes at the earliest.
It is currently not possible to pay with bitcoin for fast-food consumption like coffee.
That are the problems that bitcoin face on global scale. How we can use bitcoin at the moment if we have so many little problems, and on top of that we need to wait for confirmation or we need to pay extremely high fee to avoid that.
If dev's wish bitcoin to be used for everyday needs they will need to fix this problems and they really need to see about this fees, it will be not so good if they rise more, even now they are high.