I have had many of the Canon pro series cameras, including the 1DsII, the 5DII and 5DIII and then got the 6D and 6DII bodies. But my current favorite combo, as with you, is the RP with the 24-105STM lens as it is very light, gives me a good range and great images. I also have the 24-105/4L lens but use the much lighter STM lens. I love the face detection focusing and the flexible LCD as this combination allows me to keep up with my busy granddaughter and other moving subjects. I would like to also say that the EF-RF adapter works great and I use an EF 20/2.8 and the 40/2.8 lens for an even more compact kit. I am very happy with the RP but am thinking about the R5 or R6 in the near future.