I have one in my boat and will never own another boat without it. It is legit!
The ability to change what batteries are getting juice while you're running is nice. I can either send full power to my trolling motor batteries while still getting some juice to my main or vica versa is slick.
I run my trolling motor hard all day and have yet to even come close to running out of juice.
I haven't had to use the Emergency Start function so I can't comment on it.
But I also like the fact that I can check my batteries from in the house without having to even go outside to look at the lights. With the app I can see everything from inside.
Expensive yes, but worth every penny in my opinion.
It is a touch smaller than my older MinnKota PC460 and about the same weight. It mounted in the same spot as that. Just had to make new holes for the mounting screws.
I have the CMonster Gateway as well so I can monitor my batteries through my Lowrance units and also control EStart throught them if needed.
Only thing I would like to see is them add the ability to adjust the power direction through the gateway on the graphs rather than the app. But regardless, it works really good.