I have several of their kits. head (low only) and fog on my focus, hi/low on my bronco, and had low on an escape. they work great and have a lifetime warranty. I had a ballast go out on one of the headlights in the focus. contacted them and sent it back and received a new one. total time from contact to reinstall was a week! Only isue I've had is when it's really cold they may not start up the first time you turn them on; hit the switch a couple times and works fine. I would also recommend getting the power harness for them for added reliability.
Overall they are great for the money and include lifetime warranty. I would recommend them to anyone (and have several times).
2013 F150 4x4 SCrew XLT 5.0L
Midwest Crew #22
Official FocusFest Event Planner