I hired the new shape XC90 last year for a Scotland trip. Did about 1200 miles over a week in it.
They are a very good, efficient, well styled, well built and utterly dull car to drive. If you want to get from A - B with loads of space and comfort you can't fault them. Better value and (probably) more reliable than a JLR car but both the Range Rover FF and RRS are much better to drive and just make you feel better.
Best and worst thing about them is the big iPad screen. Looks cool, and integrates well with phones and spotify etc, but like all these systems they require a lot of staring at to use, meaning your eyes are off the road more than they should be to do the simplest of things. Lane guidance was a nuisance too on narrow roads, although I (eventually!) found where to turn that off! Steering is overly light and completely numb. The 4 cylinder was a bit thrashy but had just about enough power for day to day driving.
I'd hire one again in a shot, and maybe lease one, but I couldn't bring myself to spend my own money on one.