Depends what you want in the long term. I don’t know how old you are, but if you’ve got ambitions to become a widebody Captain, then you need to get on something bigger than a Caravan, ASAP.
Lots of comments in on here about ditching the meat bombing job, but if you enjoy it, then why not stay a bit longer. The market is already flooded with qualified CPL/IR’s.
I totally agree with the comments tho, if you have ambitions to fly end up somewhere more secure and on shiny jets, then take the PC12 job now!