I actually liked the dtek60. Only weakness was battery life (I'm a extremely heavy user) I work pretty much out of my car, so it was never really an issue for me as my car charger would get me through the day. Do give you an idea of how much I use...people talk about 26 hours on the KeyOne. I'm closer to 10hrs. Nevertheless, the Dtek60 I'm my opinion certainly needs a case as the glass back begs for protection.
Supper snappy device, BlackBerry is pretty quick with security patches. And overall , it's a pretty good phone. I only got rid of it because I turn over devices pretty quick.