I've heard the same comments about Painless being tough to install. We just used a Summit wiring kit and I think it was made by Painless, the box looks exactly the same. We have done a fair amount of wiring and it was a good thing, because parts of it even had us scratching our heads and going for an educated guess sometimes. Very bad instructions, vague, skipped lots of important parts.

I think the next one is going to be an American Autowire. We hear good things. I have always just done my own, but the kits aren't a bad deal when you add up the cost of all the components you have to buy.

Don