I'm really impressed with the build quality, seems pretty good and well screwed together.
It's a nicely spec'd model with all the toys you need - the Harmon Kardon is simply brilliant and better than my M5 factory spec system which is apparently upgraded from normal F10's etc.
Turn of speed seems slower than our old 120D, but I guess it's a different car doing a different......it also has 70 miles on the clock and not 17,000.
Over the last year we've been on a 3000 mile Italian road trip and the South of France over Christmas skiing and of course I had no choice but to take the M5 and enjoyed every mile
Would I take the X3? Well being in the fortunate position of having two nice cars one of which really is an absolute monster that can swallow a family including holiday gear et al and the other, a 120D it was never really a choice I'm afraid........however I would think more than twice now. Loads of room in the front and back, very pleasant and comfortable, toys are all a good selling point. Sure it won't go from 0-100 in a touch over 7 seconds, but let's be honest on a European run you tend to do a marathon rather than a sprint.
Time will tell how I really feel about the car. I won't drive it a great deal, it's a school run tool but I hope I'm still as happy in two years time.