Install isn't necessarily difficult- just make sure you set up the connector properly with the resistor in line. The trickier part is placing the unit somewhere under the engine cover, away from places that are too hot or restrict cable movements, etc. Being able to see the data real time is awesome for finding the right cruise speed for best fuel consumption. Performance report shows you gph across a multitude of rpm/speed ranges. You can easily see where your boat is most efficient. Once you enter fuel data (size of tank at fill up), it also helps you accurately monitor how much fuel you have used. I know my boat's fuel gauge is way off now. My only complaint is that it constantly disconnects from my phone/the app while underway. It seems to come right back, but I'm not sure why it's doing this. My phone is less than 10ft from the unit so distance should t be a concern. Everything is also up to date. But I like it enough to keep using it regardless. Knowing when regular maintenance is due is also I nice feature.
Rating: [4 of 5 Stars!]