I had a very good experience focusing an X Pro at a local dealer today! As indicated in tutorials on-line, I set the focus selector to the Manual position, then auto-focused by pressing the AF/AE lock button. Focus was not DSLR-quick, but certainly faster than pocket cameras I have used from time to time. I then pushed the shutter release button, in one movement, with no pause. This method enables one to fine-tune focus as needed by manually turning the focus ring on the lens, before pressing the shutter release, but from what was visible on the LCD, the images were focused quite well enough. The next step will be to use my own SD card, on a future visit, so I can view the images at a larger size.
Canon 7D2/7D/5D/40D/1D2N/M3; Nikon F6/D700/FM3A/1Dx/Coolpix A; Canon 40mm 2.8 STM, 135L, 50L, 35L, 50mm 1.8 I, 100mm 2.8L Macro, 10-22mm EF-S, 400mm 5.6L, 16-35mm 2.8L II; Nikkor 50mm 1.2 AI-S, 50mm 1.4G, 50mm 1.8D, 16mm 2.8D Fisheye, 180mm 2.8D, 100-300mm 5.6 AI-S, 45mm 2.8 AI-P, 14-24mm 2.8G, 24-70mm 2.8G, Micro-Nikkor 60/2.8G; Voigtlander 90mm f/3.5 SL II, Zeiss ZF.2 2/135 APO