Had a burger from Byron's Farringdon branch tonight and I can honestly say it is one of the worst burgers I have had in a while. I asked for my meat to be cooked medium rare, it arrived very well done. The pathetic looking salad was covered in a horrendous vinegar dressing which wasn't mentioned before hand. To top it off the food was all cold. The one plus is that the milkshakes are great.
With so many great burger places in London I will not be visiting this Byron or any of the others any time soon!