Meat ware issues, aka the meat behind the wheel haha, are the same across the models tbh no mater the brand your gonna get that.
The 2.5 issue is a % problem, aka the failure % on them is alot higher than any other engine in the range. The faults are well documented, head gakets and ring lands, but the cuases of the failure is the unknown. I know of some 2.5's that get beaten with a big stick repetedly and dont fail, then others that get kid gloves and fail.
What i can tell you is do the pistons, headgaskets and headstuds and you wont have any issues after that, asssuming your not going big power of course