May I ask where in London they serve decent ones in your opinion?

I am by no means a food connoisseur (in the sense of having received an education in cooking or otherwise). The above was just my humble opinion after having tried many burgers from various countries.

I do agree with that place being slightly overpriced, but the again, it“s London.

Have you by any chance been to Bukowski“s grill in Boxpark (Shoreditch)? Definitely cheaper for GBP 8 and above but quite good (again, in my opinion)