Your dealer will advocate it because he will get more money from the sale.
It may be a good system but if you have a van already and it is insured check with your insurance provider that the recommended system is known to them and approved.
I'm 84 now. Getting old is wonderful, when you consider the alternative.
Any fool can criticize, condemn, & complain. And most do.
“Be who you are and say what you feel, because those who mind don't matter, and those who matter don't mind.”
― Bernard M. Baruch