I find my bikes to be largely trouble and maintenance free on the whole, doesn't mean there isn't the occasional need to use an adjuster barrel to tweak how far I have to pull the brake lever till the brakes work or a light turn of the der adjusters to keep it shifting smoothly but nothing serious for thousands of miles.
People do fret about road bike equipment thinking its all delicate but as long as you don't try to just plow on through bad situations the stuff won't break.