Xpro works best with XF lenses because they use the OVF. Xpro, especially the first is a meme camera that loses to similar priced XT1 in every aspect, non weather resistant, no battery grip, no tilting screen, worse EVF for adapted lenses, no wifi, no classic chrome, the list goes on. XT1 even has a retro graphite silver version if you like how Xpro1 doesn't look like all the other black cameras with it's hipster rangefinder design.
XTs are better for manual lenses as they have better EVF and the body works better with bigger lenses with the adapter making them even longer. Xpro2 adds a lot but it still competes with the old XT1.>>3518657
Backbutton thumb zoom becomes second nature and focusing is easy and quick but honestly manual focusing turns into a chore after a while.