I hope you enjoy it. I was dubious about the R but having bought one I love it and the lenses are wonderful.
My advice would be to take a bit of time to set it up. The Touch Bar can be customised a great deal and I've come to enjoy using it. Most buttons can be remapped. Assuming you're coming from an SLR it might take a bit of time to get your mind dialled in to it but once set up I find it as easy to use and as intuitive as the 5D. Remember you can use the touchscreen as a replacement for the joystick and the control ring on the lens to replace the back main dial (or anything else).
If you find a good deal on it and you like grips I strongly recommend the battery grip - it really makes it a pleasure to use, especially if adapting any larger EF glass.
Oh and perhaps obvious but make sure you're on the latest firmware - Canon has really improved the camera enormously from the earlier firmware. I never thought I would have that to say about Canon!