I went to one today in Bluewater. Wasn't massively impressed . On the positive side the waiting staff were excellent and very friendly, however if your a burger specialising outlet then its vital you get the actual burger right when your charging £8.50 plus for burgers, but the actual beefburger was pretty mediocre. The Sainsburys Taste The Difference ones are much better for around £1.95 for 2!

Haven't been to one for a while now but in the past their burgers were very good indeed and far better than anything you could buy in a supermarket, excellent service too.