Painless and low risk!
The kit was a breeze to install, per the install video. The key programming and cell module programming took a few tries to get the timing right, but it all worked as advertised when I got it done. I can start my car from anywhere with a cell phone signal, and even check the GPS location of the car if it gets lost or stolen! Took about an hour to install, including doing a little extra cable management with the tessa tape (BUY THE EXTRA ROLL!). In my opinion this is well worth the extra money to get a plug-and-play harness like this. (My last car had a PCM fry because of a sketchy remote start splice, left me stranded and cost me over $1,200 to repair. For this kit, if anything ever goes wrong, just remove the harness and plug the factory connections back in, and you're back to stock.) The work that this business puts in to make the harness for you is really the value here.