Are HTC phones built to last 2 yrs?

[Matt Adams3]

After ditching my HTC Mozart due to several problems i got the One S. Now, like the Mozart after a year or so its starting to pick up a few strange problems. 1. It vibrates even though vibrate is turned off. The clock has just vanished from the home screen a few times. The keyboard switches itself back from swiftkey to the default HTC one after being turned off overnight. There ar e a few others but they may be app or network related so cannot be sure. Anyone else having the experience that HTC phones just arent built to last a 2 yr contract?