I recently purchased a new XC90 with the 3.2l I-6 engine. I couldn't be happier after 6 weeks of ownership. Quality, fit and workmanship appears to be great. Gas mileage has been decent (avg 20 mpg in mixed driving). This is my second Volvo (I also have a V70 T5) and I am very satisfied with the experience.
Smooth transmission, decent acceleration, great ergonomics and comfortable interior
B pillar blind spot takes getting used to. Stereo display looks very 1990- ish.