I currently own an Ibanez RG370dxGP3 and was wondering if it was worth it to trade for this http://newyork.craigslist.org/stn/msg/1375927188.html which I believe is a jackson warrior WRXT

I play heavy metal (metallica, LoG, CoB, slayer type stuff) and hard rock mostly

The jackson "needs a setup n strings" which is a bit of a turn off, but most importantly would it be a good upgrade?

Everything is stock on both guitars