We've had our X for several months. I do primarily city driving (true city driving stop and go every block for miles on end) and my mpg averages around 12-14. I didn't expect to get the advertised mpg but would like to get at least 17 or 19. Interior fit and finish is so-so. Great for hauling young children and rear-facing car seats fit great in the back seats. This was the main reason we chose a CUV over a traditional car.
Safety ratings, back seat space. Lots of storage cubbies/cup holders.
MPG, better external styling. I do not like all the chrome and bling look...it's one ugly vehicle but is spacious and versatile on the inside.