I and my wife each ordered a Texas BBQ Burger, and my kids had a English Cheddar Burger set. Mine should have been medium, but the middle layer of the patty was raw, and the meat disintegrated when trying to eat it. The English Cheddar cheese on the other burger (who ever heard of such a thing in Texas?!) was burned to the point of being crispy, and the burger came with what appeared to be Russian dressing (starting to sound like the UN Security Council burger). The "pickle" that came with the burger set was certainly from a jar of what I guess was German supermarket pickles (vinegar and sugar taste). Taste overall rated 2/5 stars, and 0/5 for authenticity.
My burger came first (surprisingly after the drinks + 1 point for not serving the drinks like they were dessert), second arrived 4 minutes later, but the third arrived long after I had finished eating (at least 10 minutes later). I suppose the kitchen can only accommodate one burger on the griddle at a time... 1/5 stars for speed.
Decor inside had nothing to do with Texas. The only attempt was a neon sign and a wire bust of a pony's head on the wall. Plastic molded seats were moderately comfortable, but nothing special. Service was average to poor, with below standard English level and no initiative to take an order or accommodate any special requests. 2/5 stars for ambience and service.
Price for the burgers was insanely high for the Fortress Hill side of Tin Hau. Burgers were $78-88/each, plus $33 extra for half a pickle, small fries, and unimpressive (artificial) green apple soda. With mandatory 10% service charge the total was almost $450 for three meals and 4 drinks at a hole in the wall. 1/5 stars for value.
McDonald's would have been faster, tastier, better service, and 1/3 of the price (and far more "American"). I won't be returning.