Quantum Coffee Roasters - Cardiff

I am not one to usually review but I was personally appalled by a member of staffs behaviour as I visited for a quick morning coffee. I felt unwelcome as soon as I walked through the door as there was a very tense atmosphere within the staff behind the counter. The chair that was set in a solo space was very uncomfortable so I innocently swapped it with the chair beside to then be told off by a red hair member of staff for rearranging the furniture in front of the whole coffee shop. You’d think for such a pricy coffee I would be able to sit comfortably! Made my experience there very unpleasant and uncomfortable, wish I could of had my money back and left. Terrible treatment of customers.

We found quantum coffee roasters online as we were staying in Cardiff bay for a couple of days. Fab little coffee shop. Amazing coffee. And lovely hot choc. The two lads working there were very courteous and polite. Will deffo return. Amazing place

I've tried every coffee place in Cardiff Bay, and this is the only one with really good coffee. It also has a nice atmosphere.

Mother with a baby in a pram trying to get in… on the door which had pram access it said “use other door” I go to other door, guy working there looks at me as I’m just stood there in front of a huge step. I ask him if I can order a coffee at the door as I can’t access with pram. He says to use other door. I go to other door, bear in mind he was not busy attending anyone, and I struggle to push a heavy door open, holding it with my foot so I can get mu baby in a pram in. The guy working there just looks at me. Honestly? Horrible place!!! Family run but horrible to families!

As per the title, we needed a pitstop to get the babies milk warmed, nappy changed as we had been out for some time. We ordered a chai latte too. The staff were very warm and friendly. The bathroom was really clean so we had no issues changing the bubba in there. Would definitely come again. Thank you.