Had a very upsetting experience at Costa Chalfont Way , the staff Deepak rule the store completely, it took long time to prepare the drink for the customer before me, and one of customer walk out due long time waiting, he is clearly not familiar with what he doing , not sure the quality he made for anyone else.
Totally unnecessary and loud background noise (ie, music), went there with a friend for a coffee and chat, couldn't hear ourselves speak. Won't be returning.