I pre-ordered one. It suits my style of hybrid shooting quite well. I always felt the ideal hybrid MILC was one with a balanced set of specs. Don't need RAW, don't want high-bitrates, don't need 8K. When I need those specs, I have my cine camera along with the budget and crew to support it. Here is what I like about shooting video on Sony, which continues with the S3.
- Single interface for audio. No need for dangling 3.5mm cables
- Dual card recording for redundancy and no need for new media immediately. My V90 UHS-II cards continue to work and I only need to carry 1 type of media.
- Base ISO and Max ISO. Many event halls, etc. have poor lighting which you cannot always control
- No overheating for obvious reasons
- White balance sensor to prevent rapid shifts when subjects fill the frame
- Large EVF for framing outdoors when a sunhood over the lcd doesn't always work.
- Selectable S&Q highspeed in base frame rate or actual frame rate to include audio which is sometimes imperative when editing a cinematic highlight and a long edit w/ sound. It's also easier in post to quickly identify all of your high speed clips and group them separately.
- Real-time AF (I never upgraded to the RIV, but I have a A6600 and ZV1 which are similar)
- Great battery life. I hated the FW50 batteries, but a bit more than 2 FZ100 batteries gets me through a very long day. I don't think the LP-E6NH last as long, but the Canon's draw more power as the Wh are almost identical.
In other areas, some reviews show ~13 stops on a test which is better than the R5 at ~11. The rolling shutter seems to be a bit better on the R5, but it wasn't apparent which modes were compared. Line skipped will probably readout faster than the 1:1 on the Sony but at a big cost of IQ. But at the end of the day, the Sony doesn't have 45MP and isn't great for stills. I would need two bodies to cover video (S3) and stills (RIV).
It's all a mess of compromises...