Not to flame you, VI, but the Entertainment books, while filled with plenty of crap, provide some enough deals to justify the very reasonable price ($25). Moreso, I think it's a valuable tool (especially in my pre-chowhound days) of rooting out lots of places you wouldn't otherwise try. No, two bad meals for the price of one is not a good deal, but I've had about the same rate of success with the Entertainment book that I have by stopping at the various strange, interesting, and shady looking places in any given neighborhood. And seeking out Entertainment values gives a city newcomer a good way to just get out and explore those different neighborhoods. And it makes it easier to rationalize dropping a few bucks on the flavors of Russia and Ukraine in Paradise (coincidentally, I just noticed that place last night as well).
Its usefulness as an exploratory tool aside, it's got a number of good restaurants if you wade through all the crap. Among those off the top of my head: Tango Sur, Cyrano's Bistrot, Le Titi de Paris, Arkadesh, A la Turka, 773 Chicago, El Tinajon, La Pasadita, Tre Kronor, plus about a gazillion Thai restaurants and a handful of Argyle Street spots.
The book also has a few surefire ways to earn your money back, like $5 off a $50 purchase at Dominick's.
I know some people find them cumbersome to use, and you can often be misled, but I must say I enjoy poring over the new book every year (especially in a new city) imagining the various dining opportunities that await.