I have no idea why I didn't make a topic about this sooner myself, I had planned on it and... forgot, I guess. Oops. But yeah, I got the Steam version and I quite enjoyed it. Here, I'll just quote my Steam review:
It's true: Despite its own graphical style, isometic viewpoint, and some other quirks, Oceanhorn: Monster of Uncharted Seas is essentially a Legend of Zelda style game inside. But why is this a bad thing? As a diehard Zelda fan, I welcome the gaming industry to create their own attempts at Zelda-like games, whether from AAA developers or indies. And Oceanhorn does a fine job of being a fun game, even though almost all of its major elements are pretty much lifted from the Zelda series. But let's be fair here, bows, bombs, swords, shields, and sailing are far from monopolized by Zelda.
Getting into Oceanhorn itself, there's a lot to like about this game. The art style has its own charm, the isometric viewpoint is neat and a nice callback to games like Mario RPG and Landstalker, and the music... sublime. It all comes together in a wonderful presentation package that should delight anyone who can see past the game's obvious inspiration. The controls, for the most part, are pretty fluid, especially considering this is a port of an iOS game, and it felt just right on a controller, although the main character does move just the smallest bit slower than I'd like him to. The sailing atmosphere is gorgeous, and it's fun visiting new islands and charting them out, learning what secrets and people dwell there. The puzzles, while not entirely brainteasers, were the right amount of clever and made the game feel fluid. Dungeons are clever and designed expertly, with creative boss fights I quite enjoyed. In some ways it's a bit on the easy end, but no easier than your typical Zelda game.
The cons with this game are minor. There's the often-cited lack of a map screen, which would have been very handy. I find it odd that you can't dash or roll up steps, which would be nice for speeding up action. And the sailing is even more restrictive than that of Phantom Hourglass; in that game you could at least plot a course, but here, you can only select a destination. I would have liked a little more control, especially in that gorgeous atmosphere, but it's a minor concern.
Also, the game is too short. 
But that's both a pro and a con; a con, because the game did feel a bit on the shorter side, and a pro, because I only wanted more.
In short, Oceanhorn is worth it if you're a fan of adventure games, especially Zelda obviously, whose only shortcomings are minor. Hopefully the game becomes successful enough to warrant a sequel in the future. Great product, Cornfox & Brothers, and may you see continued success!
