My pocket operators disagree - Love them to death, but I just know I'll break them some time soon (and I know I can get a case, but the device itself is NOT build that strongly).
My op-z (buttons fell off or stopped working), ob-4 (buttons fell off or stopped working), pocket operators (battery doors snapped, buttons stopped responding, lcds leaked) all join you in the disagreement. As far as I can tell the only thing they've made that is robust is the op-1 (yet..., I still love TE).