Maybe its my age and the fact that I began with the earliest Leica, Nikon and Canon rangefinder cameras and lived through the quirks of Exakta and Alpa before becoming a Nikonian,but; I am having no problems in working with the XP1 and the Rayqual Leica and Nikon adapters. My, literally testing is far from complete, but using this camera is already second nature to me. I have spoken with Fuji Techs twice now regards matters I wanted communicated to Japan for future software updates and future camera development. I love the (Q) button and find battery life rather sorry...I have three and carry an extra everyday. That would be my biggest complaint. The lack of eye pice adjustment I understand from a design stand point so I simply added a (Zeiss -3 diopter) for these aging eyes an the camera and I are happy. Some of the complaints I read are so ludicrous. Some test photo links below.