The P3 is, and has been, our choice. This morning we traversed a 5 mile steep (14%) grade, so I had to turn up the boost. Having forgotten how (it's been a while and I'm old!!), I looked at the display, punched the very-intuitive buttons and got it. Later, I noticed the 'book' icon and realized their instructions are built-in. Great product.
Don & Teresa
2015 17A Classic: 2011 Honda Pilot