If you don't want to bother listening to them just google 'job for a cowboy genesis review'. You will see the same fucking thing over and over again.
"The hyped JFACB make name for themselves through myspace as a hot new deathcore act, now turn to a straight forward deathmetal sound with genesis."
My opinion of Genesis is that it is neither terrible or great. It's a solid average, but I think it shows potential.
Another band that did pretty much the same thing as jfacb (becoming ex-core)is Misericordiam. Went from fairly standard deathcore to fairly solid deathgrind. I hope this becomes a trend.