Good game, Not a Bad choice
I've been playing the game for a few hours now, and I have to say that this game is pretty fun. Initial reports stated that the game is very short and extremely easy.

I would have to agree that this game is very short, although there are multiple paths through levels and many different swords to collect and upgrade. This game is not as easy as it was initially made out to be.

While the difficulty isn't ridiculously hard right off the bat, it does ramp up a bit each level. Things become significantly harder by the time you reach the third or forth stage. The game play remains essentially the same as you go, so you'll be okay if you enjoy constant hacking and slashing.

The sensor bar does an above average job of tracking your movements, so for the most part when you need to make a specific cut you should have about a 75-85% success rate.

Import wise I would recommend this game to hardcore Dragon Quest fans only. For those of you with a lot of disposable income and a desire to try something new (at least to American audiences), I would also recommend this game.

Be warned that there is a lot of Japanese text in the game. Although it isn't necessary to understand the story to progress, you may feel as though you're missing out on a big part of playing the game. Currently, as I'm writing this, there aren't any English FAQs to follow along with, but I assume that will change within a couple of days.