Easy installation. Immediate detection that the product was engaged. I felt the difference when road testing the item...no more jump starts, it was smooth and steady. Also, I noticed improved fuel savings when traveling the next day for about 300 miles, then again on another trip of 150 miles. I'm very impressed.
Don't expect to much
21 days and I'm not impressed.I called there tech line,and although helpful,they could not solve the problem with night mode.The touch keys are very sensitive and the control is sluggish.The possible "display options/possibilities" are nice,but overall functionality is poor,especially in 2017.its options are to complicated.To "upload/update" it is somewhat confusing.Once on the site I was hesitant if I was installing the right things.I would pass/try something different if I had the chance to.