There seem to be a lot of people using the "trust X, they know what they are doing" argument, despite the fact that many incidents are caused by people that "know what they are doing". Train crash in Spain - caused by someone who "knew what he was doing", Comet hull losses - caused by people who "knew what they were doing", battery problems on 787 - the same people.
There isn't much that would get me on a 787 at the moment, especially for an over-water flight. There is too much that has gone wrong with one essential subsystem - the electrics. There *is* a time element to this - once a couple of years have gone past without an electrical fire, it may be safe to assume the problem is understood and sorted. Until then, I don't want to be a paying guinea-pig, thanks very much.