If you're only looking for clear instructions on how to run your cottage economy, or anything that falls under the subtitle "Brewing of Beer, Making of Bread, Keeping of Cows, Pigs, Bees, Ewes, Goats, Poultry and Rabbits" then steer clear of this book.
If you're interested in those instructions but also in the reasons behind why you or others might want to do that kind of thing then I can't recommend it enough. It's remarkably sharply written, once you get used to the slightly old-fashioned style. It provides plenty of support for why you do what you do. You'll quite probably find yourself agreeing loudly with some of Cobbett's opinions. And you'll be surprised, after all, at just how relevant much of it still is. It's still not a practical guide - although it does have instructions for making, growing and farming you'd be much better off with John Seymour for a starting point - but it's a fine read and would make a great present for a frustrated smallholder.