I included it on my 2017. I travel alone (well I have the animals - but they don't help much). I added it because I wanted as much safety help as I could do. At first it was a bit confusing - different noises coming from this and the GPS, etc. But I have settled in and can better "hear" which thing has beeped and even know sometimes without looking at it, what it is picking up. I can't say that there has been any one dramatic moment when this has saved me from disaster but it has given me all sorts of head's up I was happy to have to help keep me safe. During those times there are so many things to be watching at once it really is an extra help.
Sometimes it will give you some interesting results - when it picks up a speed limit sign that is actually for a road/exit along side the lane you are doing. I still find it impressive how may things it does work out for itself.