The Good Soldier is the story of an American and an English couple and their various and interesting interactions. It's told in an Impressionist style, which I don't really like, to be honest, although I can see the literary merit in it - i.e. it's not told in chronological order but as if a real person were telling the story to a friend, with digressions, hoppings back and forth and all manner of odd effects designed to make the novel feel more real. I prefer my stories linear, but it's not a bad book by any means.
The appendices in this edition are interesting, though: there's Ford's essay "On Impressionism" which contends that God is an Impressionist; and some of his rather second-rate poetry. It's a good edition of the novel, in any case, if with a little too much editorial footnoting (we do know who "Mr. Hitler" refers to without being told, thank you very much.)