The only thing different is that you have to hook it up to the battery. Extremely easy with the directions on their website. And yes you can tell a difference between the high and low beam. Sorry I don't have any pics, and I have the 5k kit.
I've got a bixenon kit, but only have the left solenoid hooked up. I leave the pass side in a position between high and low... I have a decent quality kit, and I just bought a cheap-o kit for the gf's jeep. I'm curious to see how it holds up.
I have the Techone BiXenon kit that was in a GB a bit ago. I have the wiring digram to get them to work. Should hold true for anyone with bixenons. I never had issues with blinding people and them flashing me. I just pointed my headlights down a bit.
Diagram Courtesy of a Member on here. I decided to host it on my photobucket account to preserve it for future needs.