It seems like there was one connector under the intake manifold that was a little hard to get to, and of course you have to take the spark plug cover off to get to the coil packs, but other than that nothing too bad. I was quoted 3.5 hours by an independent shop, 6 hours by the dealer, and a friend said that he had witnessed it done in an hour and 15 minutes. This made me so curious I had to try it. If I had to do it again I think it would be under 2 hours. I suppose there's some risk of a tow job but you'd probably still be ahead.