i remember when i was looking to buy a crossfire, i called a few service managers at dealerships asking if they recommended the car. I only had ONE (out of about probably 5-6) who said anything negative. and he said exactly what your dad is saying. "it's a beautiful car, but don't get it. the electrical system is crossed between chrysler and mercedes and it just doesn't work. and if something goes wrong it can't be fixed usually. the car is a nightmare". HOWEVER, i was too in love with the car to NOT buy, and disregarded his opinion. I have never been able to figure out why he said that, but my theory was that he had seen one or two crossfires in his shop that he couldn't fix that gave him lots of electrical problems, and that is why he was predjudiced against them. having been reading everything to come across this forum for almost the last year, i can tell you that this car does NOT USUALLY have electrical problems. the only exceptions i can think of off hand are the TPMS system (nightmare, but optional thankfully), the crankshaft position sensor, and occasionally rear spoiler motor. As far as the electrical systems, those are about the only remotely common ones. Sometimes someone will popup with gremlins floating around in the wiring that they can't get rid of, but it's more rare than you (or your dad) would think. Plus, the members on this forum will go out of their way to help a fellow crossfire owner.

Hope this helps!