Yup, I plugged it in, answered the 3 or 4 startup questions, ran the factory test to get the info to register our unit...
I changed a couple gauge settings (changed the gauge shown) and it was really easy to do..
Its very easy to see, even it bright southern Az. Its got a very good contrast and brightness of the LCD.
The suction stalk it comes with is top notch. I wish the expensive iphone holder I got had the same quality design.
I haven't "driven" anywhere, but I did start the car and let it warm up etc just to see numbers change etc.
It can do MPG etc but it requires some calibration for that, but I don't think it will work well on our Honda since we have a vtec-e model which means it goes from 12v to 16 valve engine somewhere around 3000 rpms.. stay < 3000 rpms and we get really good mileage.
So far, I'm very impressed with it.. Even more so because of its price.
The biggest reason I got it was so when we were having an issue with a vehicle I can watch things like o2, MAF, and other information to get a better idea of what is going on.
~Mark