If you're a Zelda fan or looking for a gift to get that Zelda fan in your life, these books are a fine choice. The authors have taken some liberties with the stories of each respected game, but they're okay liberties. Some of the manga is VASTLY different compared to the game (ie. Link to the Past), but it still works somehow and it still makes for a decent read. It gives a game like Four Swords, which didn't have much of a plot to work with, some depth. Some of the mangas are better than others though.
One admirable thing about these comics is that the art style changes, just like the games. The style of Phantom Hourglass is eons different compared to the Ocarina of Time style. It's done very well. I have to give the artists extra credit for that.
The Ocarina of Time manga is my personal favourite, but all of the books are enjoyable. Obviously, if you haven't completed a game, there may be some spoilers in the manga.
I strongly recommend these books. Whether you purchase the set or just buy the single volumes for your favourite games in the series, it's all good. Check these out.
The collection is really good value for the price. And the manga is actually good, but obviously it's not as memorable as the game.
Since there's only one volume for each game, expect a major shortcut in the story telling here. New characters and elements have been introduced, but the core story is there!
I say it's a no brainer if you are a fan of the game. If you enjoy reading manga in general, I don't see why not buying this collection with this very good price!