Wonderful camera. It may have a slightly different button layout but it's okay, you get used to it quickly. A great upgrade from the 6dmark ii. What I really like is that it has a nice grip.

Since I acquired it, I stopped watching machine reviews. Without being perfect, it suits me perfectly.
In the negatives, I will mention the single card slot (if you need something that won't be repeated), and the touch focus (instead of a joystick) that I never got used to.
If you're not a professional (I am), it's not worth going for a more expensive model.

The camera in the video is top-notch. 1080p-8bit at 60fps slow-mo, with C-log and ready Lut, you can do coloring in 10 minutes. There is a bit of noise in the blacks (noise is always present with the 24-105 F4 lens), but you can use the magic bullet denoiser at 20, do sharpening at 15, upscale to 4k, and have 90% similar results to any 4k 60fps blackmagic raw or xt-3. What matters is how skilled you are in directing and shooting, and it's not always the camera's fault. Some say the best camera is the one you have in your hands, and they are right.

Since we are all amateurs, if you do proper exposure, you won't have any problems. Not to mention it shoots 4k 10bit with the Atomos. I won't even discuss that I can edit C-log all-I 60fps in Premiere 2019 with a Core i7 6700 without a graphics card! and manage to play the timeline with one lut easily. I won't even discuss how user-friendly it is, how high-quality the RF lenses are, and how accurate the colors are. The xt-3 may have better 4k, but you can't edit on a PC. You need a 3000 euro PC. As for Sony and Nikon, I just laugh at their low bitrates.

If you have the appetite, get a bmpcc6k; otherwise, the EOS R is the way to go to sleep soundly. Jack of all trades and master of some. I won't get involved with Sony, all green and very low bitrate, the colors are terrible, you can't bring the video to life no matter what. Nikon z6 raw is a joke. Also, I don't want to spend 5 days coloring like with Panasonic. Plus, the Panasonic S1 has video issues. That's what they say on the Internet. Also, the XT-3 is APS-C. I want a full-frame look. It has stabilizer, but not the best. Get a Ronin S, don't be stubborn.

I want the best autofocus. Tremendous battery. Tremendous RF lenses. So, I bought the worst camera for video, as the YouTubers say, and I have peace of mind :). I will also buy the RF 35 1.2 when it comes out, and that's the end of the story :)

I don't know about photography. My friend got the Fuji Medium Format :) and he liked some of the photos I took, especially the sharpness. Always with the RF 24-105 lens, guys. If only I had the RF 50 1.2 as well. Check out Dustin Abbott on YouTube, he talks exactly about photography topics. By the way, he also bought the EOS R!

We are not ready for 4k/120fps 10bit internal with autofocus. When that happens in 2025, until then, play ball with upscaled 1080p.

The machine is very good regardless of whether Sony is superior in terms of specifications.
I agree with most people who say that it is a machine that you have to try to understand if you like it or not.

The positives:
The EVF is fantastic
the body as a whole is exceptional
the RF lenses are a different story on their own - the 24-105 kit lens is the best I have ever seen in a kit lens.
The EF lenses work maybe even better than if they were native
The colors of Canon
The battery is excellent (about 700/charge)
The menu is perhaps the best on the market
The screen is excellent
The curtain falls and covers the sensor when changing lenses (I can't understand why not all manufacturers do this)
The frame rate in servo is 6/sec which is sufficient for me

The negatives:
1. The issue of the huge crop in video when shooting 4K but personally I don't care as 1080 is more than enough.
2. The lack of IBIS in this price range (regardless of whether the lenses do a good job in IS)
3. The face/eye detection still needs work (Firmware 1.3.0)

The issue of the second SD that many complain about is not important to me as I am not a professional but I have covered it through the camera itself. Every photo I take automatically goes to my phone via WiFi (including raw files). There is a penalty in terms of battery life but you can't have it all... (with what Canon does to us)

For this price, it is an excellent solution, especially considering the prices and the number of lenses that Canon has.

*Update 9/26/2019: After installing Firmware 1.4.0, the eye AF has improved significantly and is now comparable to Sony's. The same happened with tracking in servo - It's like day and night compared to the previous Firmware.

One more thing I noticed (although there is no information in the release note) is that the touch & drag AF point selection has become much more sensitive and smooth - this change is very important as sometimes it was difficult to select the desired AF point.

Obviously, the camera was capable of functioning like this from the beginning but Canon did not pay attention or simply underestimated the issue.
Perhaps with a future firmware update, Canon will decide to "unlock" the camera in terms of video (removing the crop) and Focus bracketing (which the smaller RP has). As I understand it, the camera has other capabilities that Canon has deliberately chosen not to provide.

*Update 10/2/2019: For anyone interested in charging the camera using the USB-C port and does not want to pay the $190 (!!!) that Canon asks for the PD-E1 USB Power Adapter, there is the option of purchasing the Anker PowerPort Atom PD1 charger which costs only €48.