I'm on a long train ride, so I listened to the whole thing just now.
My first comment is, I'm surprised how many people are bothered by the vocals. I don't have any problems with tthem at all.
My impression is, the sonic quality is what you would expect from an Inside-Out signed act. I'm actually consciously trying to factor that out, since I think a lot of people can't separate one from the other. And to be perfectly honest, if this album had been recorded the way most bands in their age bracket get recorded (friend of a friend has Cubase and some mics), I think the reviews would be much less favorable.
Regarding the meat of the album, it's esentially an amalgamate of the members' favorite bands. Some DT, some screamo, some NuMetal. Can't fault them for that, that's what's hot for them, it's what they listen to.
My issue with the album is, when i subtract all of those obvious hommages, I find there's very little remaining. I'm searching for a different angle, some unique ideas that tie those things together, but to my ear there aren't any.
My summary would be, maybe now that they got their debut out, and they will have done some subsequent shows for it, they can start focusing on what comes after. Many famous bands' debut album bears little resemblance to their breakthrough album, let's hope that's true for them as well.
EDIT: And maybe try to find a dedicated lead guitarist.