I haven't made a single thing from this cookbook yet, so I can't vouch for any of the recipes, but I will attest to the fact that this is high-quality "cake porn." The photographs are incredibly glossy and gooey; serious, serious butter and sugar content here. There are also some really good tips (and explanations for why you follow certain rules in baking) in this book. I've read enough baking books -- and baked enough myself -- to suggest that you can probably trust Bea's advice.
However, this is seriously over-the-top stuff -- vying only with Rebecca Rather's, in my humble experience and opinion. I may drool over it more than I actually bake from it . . . especially since I can visit Bea's in Bloomsbury and sample many of these specialities. (Probably best to restrict oneself to a single serving.) I will be trying the snickerdoodles SOON, though. (Bea, like me, is an American/English hybrid.)