grand cherokee owners any info good or bad?

the 4.0L is like a /6, bullet proof as long as you take care of it.
I have a customer with a 94 Grand Cherokee that has nearly 500k miles on it.
most of the issues are mickey mouse crap.
they do have a penchant for leaking between the transmission and transfer case. but at 112k if it hasn't all ready done it yet, I'd say you're good.
Look at the bushings at the transfer case shifter, they do dry rot and can leave you stuck in 4X4. not an issue if it has a 249 transfer case (full time 4x4).
Change all fluids especially in the rear end and transfer case. I'm sure they have been ignored, they always are.
Oh yeah, check the A/C, it's easy to overlook this time of year.
Overall, they're nice riding, nice looking and hold value well.