I have a suit, bunch of shirts and a sport coat from them and am totally satisfied for the price, particularly with the shirts, which are much better than department store shirts that I used to wear. fwiw i'm a lawyer and never felt like I was wearing something cheap compared to everyone else. I do not practice in downtown manhattan however. assuming you wait for one of their ridiculous sales, which will not be a long wait, you can get really good deals and the quality is perfectly adequate for a normal person. never bothered to look but I think it's safe to assume the stuff is made in some asian country, but let's face it, how many people really demand, need or actually buy fine tailored suits from london?
edit: btw they have 2 or 3 different levels of quality for everything so keep that in mind - stick to the high level