I love my R7. I had the 7D for four years, and the 7DII for five years. Both excellent crop cameras for their day. The R7 far surpasses the 7DII in every sense that matters to me. The AF is amazingly good, just a bit behind my R6II, which is even better (maybe the best AF available currently), but very reliable, especially when you get to know how to dial it in. I don't use the 30fps burst speed, because that's simply overkill for what I shoot (action and some wildlife, plus everyday stuff when traveling), so perhaps I just haven't used it in the mode that gives people inconsistent results. For me, 15fps is more than fast enough (I wish my R6II allowed an e-shutter speed slower than 20fps but faster than 5fps). Rolling shutter has also not been a problem for me at all, but that's because of the subjects I shoot. Runners, for example, are just fine with the R7 e-shutter. I've also never experienced shutter shock with the R7. When I'm not in e-shutter, I'm shooting EFCS, not full mechanical. EFCS simply isn't affected by shutter shock (there were some early reports of shutter shock in EFCS at 15fps with shutter speeds around 1/200, but Canon introduced a very effective firmware fix for that). And for those who complain about the noise of the shutter, I still have my old 20D, which was a great camera in its day. The 20D shutter is significantly louder than the R7 mechanical shutter (yes, I measured both with a sound meter). I also love the ergonomics with the control wheel around the joystick. Given the fact that so many photographers seem to be the kind of old dogs who refuse to learn new tricks (as with the original R's touch bar, which I also really liked), I expect that Canon will change this in the next version, which is a real shame. I'm also very happy with Canon's lenses for the R7. Now that the excellent RF-S 10-18 is available, I don't see the need for more dedicated RF-S lenses. I shot crop DSLRs for many years, and mostly used full frame lenses. The RF lineup has plenty of small, light, cheap, and very sharp lenses, that work really well with both crop and full frame. I like my RF-S 10-18 and 18-150, but otherwise use lenses that I can also use on my R6II, which I see as a major advantage. Finally, the image quality of the 32.5MP sensor is excellent, especially when processed with DXO Photolab.
Having said all this, I'll probably get the R7II eventually, but maybe not when it's first released (I did get the R7 when it was first released). I don't see a better crop camera available right now, from any manufacturer, but I'm sure the R7II, when it comes out (who knows when?) will be even better. And I do love my photographic toys.