I have the Rexing V1P, and have been very happy with it. I specifically sought one out that had a front and rear camera so I could at least catch anyone who might rearend me, but so far only catch people "digging for gold" while at stop lights. I also got the power supply that plugs into the fuse box and hid the wires, but that was a pita, and if you're not good with that kind of stuff, you may want to have one installed at Best Buy or some other local car audio shop. What led me to finally get one was when someone decided to make a U turn from the side of an exit ramp into the car I only had for a month, you're not allowed to do that and at least they made it easy for the cop when they admitted that they did that...