Okay, so...
I was going to write my own review as to what I've heard thus far.
I was going to say how the album was GOOD, but it didn't meet my expectations.

Bearing in mind, I've had a very bad couple of days, and I was sort of hoping that the new VAMPS stuff would take some of the stress away. So when I listened to the songs starting with EUPHORIA, my expectations were unfairly high. Nevertheless, I was going to post about why I was dissatisfied with it...

BUT

I listened to PIANO DUET... and... well, I changed my mind. The song itself is slow and very simple, but there's some charm to it I can't name. Something about it, though, just puts a smile on my face. So I'm going to give the album another listen later, and then post my opinion. But I will say that PIANO DUET in itself is essentially reason enough to buy the album already.

Bearing in mind, I haven't listened to all of the songs. Some of the uploads, as someone said earlier, are in VERY bad quality. Virtually unlistenable for me. Once they're posted in a bit higher quality, I'll listen to them.