Not super-original, but it's great to have on hand when your brain isn't coming up with anything, especially under pressure (i.e birthday coming up and you can't think of anything different than you did last year)--it gets your brain moving. I wouldn't pay more than a couple dollars for it, though.
I think these ideas would appeal most if you're pretty sure all women are alike and all men are alike - and your partner fits the mold. I felt like I was reading something off a magazine cover at the grocery checkout.
Most of the suggestions made me think, "Wow, THAT would go over like a lead balloon!" whether it was me taking the action regarding my wife or my wife taking the action regarding me.
If your partner doesn't fall neatly into magazine stereotypes, most of the book won't be very useful, and some of the ideas could backfire badly. The best ideas were along the lines of "Do something your partner would like" or "Do your partner a favor." If you don't know what your partner would like or if you don't know what your partner would consider a favor, making the effort to find out is itself a romantic idea. There, I just tossed in a 251st idea, free of charge.
Some of the ideas seemed usable, though, so maybe the way to use this book is to go through it together and see what appeals. And there's a 252nd romantic idea.