how good is h265 SDI compression on blackmagic bradcast g2?

Hello everyone!
I intend to buy four broadcast g2 cameras for multicam recording.
I am accustomed with panasonic gh5 recording quality. There, I usually shoot in h265 150 mbps 10bit 420. How good is the blackmagic’s h265 SDI recording? On paper 197mbps is better than 150mbps but I need an user review on this matter.
Thank you for your input,
Eugen

Multicam suggests post-production. I think you should stick to BRAW for that.

Use compressed formats only when you need to hand the card to the client immediately after the shoot. (In other words, only when you can't do post-production.)