To imply otherwise is astonishingly outrageous, not to mention insulting to the Engineers that work on them.
I agree entirely, but wonder if you're taking things a little to the extreme?!
I don't think anyone was suggesting that any crew member gets on a plane and fears for his or her safety when getting on a jet. We wouldn't go if we did, afterall.
But you can look through the tech log and see problems that just don't seem to get fixed.
I don't blame the engineers for this - I'm sure time constraints are to blame - but "ill maintained" doesn't imply substandard performance on the part of our (amazing) engineers.