Interesting thread. This is my first post on this site, as I just purchased a 2017 4Runner TRD Off Road Premium, Barcelona Red. I say interesting, because I just got rid of my 2016 Ram 2500, Big Horn, Crew Cab, with 6.4 Hemi. Yes, I loved the power in that engine, and yes, it is a big difference and adjustment going down to a 6cylinder engine. For me, however, weighing the pros and cons of letting that go for the 4 Runner, the pro's far outweigh the cons.
As much as I enjoyed the power, I did not need the 6,700 pound beast, I did not need to struggle to park the beast, and I did not use this beast for all of its intended purposes, i.e., it is a heavy duty work truck. I am retired, I don't work, and this truck would never have seen any work. I had it only because I enjoyed big V-8 power.
So, down-sizing to the 4Runner, was a positive for me, in many ways; reliability, re-sale, fun factor, being able to get around better, having the option to play with the vehicle, and never having to worry about finding the right parking space. I drove my 4Runner home last night; a 120 mile trip in the pouring rain, in some pretty hilly areas, and yes, it is a different beast, takes getting used to the 5 speed/pairing with the 4.0, however, like anything else, it's about living with the decision you make. I have always wanted a 4Runner, and now I think I have my last vehicle.
I wish you much success in your decision making.