That is a DK2 from the Okoume series, right? Have not played that model yet or any Jackson with that specific neck joint. This looks interesting. I will have to get my hands on one and try it out. It is a Pro series so I think that my previous post will lay out what generally to expect. Odds are in favor of getting a really nice, great playing guitar. If not, you fell into that ~20% of guitars with issues. Return it and get a different one. The Pros are great guitars and with just a bit of tweaking and work can be brought very close in feel to their USA counterparts.
I will say that I have a number of US custom shop Dinkys. They have the square 4 bolt neck joint but it is contoured so that it gets thinner at the end of the neck joint. Makes for a neck joint that I have never really noticed or had an issue with when playing.
I like the rounded contoured Pro neck joint from years past.
Anything is better than those old vintage strat style neck joints IMO. It is like someone decided to put "Castle Black and The Wall" on a freakin' guitar. I have a Charvel Satchel with that style neck joint. I am very aware of that neck joint when playing.