Apparently inspired by the culture from Down Under, they have a number of great reviews on their site. I can honestly say that you can believe the hype, they are one of the best I've found in the area, with a consistent and distinctive house blend. The staff seem knowledgeable and nearly always seem to provide a level of care in their service. My only complaint is the servings are on the small side, but a reason to keep going back for more.
★★★★★★★★★☆
66 Great Titchfield Street
London W1W 7QJ
https://kaffeine.co.uk/