5.7 Hemi's with the MDS are prone to lifter failure which wipes out the cams.
I have an 09 Envoy with 150K on it and love it for many, many reasons.
Size is perfect, rear seats fold down with no hole between the front and back seats, seats are very comfortable and the headrest is a better angle than the new ones, and it is a decent 4X4. I wish I had the 5.3L in to though. I also pull a boat and want an SUV like the Envoy with a to replace it. Where is GM??? Nothing in the same category. The Yukon is too big and pricey, and the Acadia et al just don't have the trailering ratings and I don't want a truck. And yeah the new Trailblazer is just disappointing. The Traverse isn't bad but feels cheap.
Where to turn? I guess I will just maintain the Envoy until I find something I like. The Jeep or Durango would work, but, well, they're Fiats so not going there. Maybe a Ford Explorer but that isn't a true 4X4 and they have a PTU instead of a Transfer Case with no drain to change the oil. Great Move Ford! And of course no dipsticks on the new Tranny's either.