Having had an XC90 for 3 years with BLIS and it saved me from a definite crash, I would never have an XC90 or other main car without it. Hence I got the last XC90 T8 R Design on route into the country with it prior to them stopping it on MY22. It meant I had no choice over other spec, but that was the only thing I HAD to have to buy the car.
When the dealer was doing the handover he said it didn't have it - my heart sank, and I was about to walk away from the deal having driven 5 hours etc, but luckily it was his mistake and it did have it! The 3 he'd sold the day prior did not. That is how valuable I put it.
it is of course just driver assistance etc etc, one still needs to drive and pay attention according to the volvo website