Let me preface this review by saying that I really like Julia Quinn. She is, in fact, one of my favorite romance authors ever. I discovered her with "The Duke and I," I devour each of the Bridgerton books as they come out, and now I've gone looking for her earlier books to tide me over until the next installment.
Unfortunately, "Everything and the Moon" is not one of her best works. It's not *bad*, by any means, but there's nothing particualarly memorable about it either. The plot doesn't flow very well -- each segment seems a little disjointed from the one that came before -- and it could have borrowed from any of a thousand other romance novels. The characters don't really stand out either; they're fairly generic, as if they were sent from Central Casting and not fleshed out at all. I've just finished the book, and I have a feeling that in a few days, I won't remember much about it at all.
Despite this middle-of-the-road quality, it does have its good points; I occasionally saw flashes of Ms. Quinn's trademark wit and style. Robert's reaction when he almost walked in on Victoria in the bath amused me to no end, and the way Victoria trounces the villain at the end of the book made me both laugh and cheer. But, on the whole, this book was rather flat.
This is one of Ms. Quinn's earlier efforts, and it shows -- she has greatly improved as writer since then, in my opinion. If you're just looking for a regency romance to read, there's nothing actually *wrong* with this book; there's just nothing really exciting about it. If you're looking for early Julia Quinn, I recommend reading "To Catch an Heiress" instead; it's much more lively and charming. If you've never read anything by Julia Quinn before, I recommend picking up a copy of "The Duke and I," the first volume of the Bridgerton series -- you'll be letting yourself in for a real treat!