Quantum Coffee Roasters

Really nice coffee , nice space for chatting with friends and working staffs are friendly they have specialty coffee retail shelf as well . Highly recommend but no my favourite ham cheese croissant

Quantum Coffee Roasters in Cardiff is a great spot for coffee lovers. I had a latte, and it was smooth, creamy, and perfectly made, with some lovely latte art on top. The place has a cozy, laid-back vibe, making it ideal for a chill hangout or a quiet coffee break. The staff are super friendly and know their stuff. Definitely worth a visit if you’re in the area!

A cozy haven serving aromatic brews, delectable treats, and warm hospitality. Friendly staff, lovely place. We ordered a black Americano and cappuccino, which was excellent, An unforgettable coffee experience, highly recommended for you!

I really enjoy the area. it's very cosy and wide open space. The options are somewhat limited, but I do like the beverages, my favourite being matcha coffee, and they do a cold brew. I got a smoothie yesterday, which was great, and the portion was great.

Nice cafe just round the corner from Cardiff Bay. Friendly staff and very relaxing atmosphere. They carry a variety of beans although they are for sale and you can’t choose what your coffee is made of. On my visit the only choice for a drip (filter) coffee is from Yunnan China. Coffee was nicely brewed but a little too weak for my taste. I still enjoyed it though. It’s always nice to have freshly ground and brewed coffee.

I have been to this cafe a few times and enjoyed previous experiences so I decided to bring a few friends who were visiting to have some coffee. We were served away which was a positive but the lady taking orders had a rude tone. We received our drinks within a minute of ordering, which is surprising because most hot drinks take at least a few minutes to come when at other cafes. The drinks we were given were scalding hot and tasted of burnt milk. Many of us threw our drinks in the bin outside because it was so disgusting (even after letting them cool down). It was clear that the 2 ladies just wanted us to take our drinks and go. Will not be returning.

Nice and cosy cafe, staff are friendly and it’s a spacious place. Prices look lower than other cafes which is good! My americano was sour and acidic tho, I personally prefer bitter coffee.

I had a pleasant time in the cafe. Wonderful Nitro Cold Brew with delectable blueberry muffin. The overall atmosphere felt cosy and the baristas were welcoming and helpful.