Hagen Espresso Bar in City of London, Westminster

This is a tiny but cosy cafe tucked away in Swallow Street but the coffee there - a Colombian blend - is so smooth, quite frankly, it's exceptional and the two baristas are very attentive, efficient and charming. There are so many coffee shops in Mayfair but the coffee here is so worth a trip and many returns visits (as I will do) if you also work in the local vicinity. What a treat.

I say breakfast but it was for a flat white, up in london at the weekend with friends picked up 2 flat white coffees and pastries. Very nice would highly reccomend, polite and courteous staff also Thank you.

Came here today but it was totally spoilt by a loud mouthed,racist woman claiming to be famous!! She was asked very politely and quietly not to film in here but she continued and was abusive to the staff. She needs barring from here. Shes now gone on to tell her followers to come and leave bad reviews.

Παραγγείλαμε δυο καφέδες, στον ένα την ώρα που τον σερβίρισε έπεςε ο καφές έξω και η κυρία σκούπισε με το τον πάγκο με το πανί και στη συνέχεια το ποτήρι ( με το ίδιο πανί , με την σειρά που το ανέφερα).

Can’t decide if I was conned as a tourist or they genuinely charge ridiculous prices - £6.30 for a flat white!! The coffee was good but not that good, I’d avoid in future.

Best Flat White this trip to London. The sign said they had the best coffee and so it was. In an alleyway off Piccadilly or Regent. Places to sit. Went there 3 times

Best coffee in the town, lovely atmosphere and friendly service!!!!!! I enjoyed every sip and would highly recommend to everyone