I use fairly loud onstage monitoring , and had some feedback issues with a sure beta 58 , that whilst I could eq away a bit and reposition monitors and stand placement, I didn't like the resulting sound.
The specs and reviews of the om11 seemed to tick the boxes , so I became a convert , and it does suit my deeper voice , and handles the "plosives" well. I tend to sing with my top lip on the shield , and it works well for me
Although it does seem very robust , the first time I dropped it , one of the soldered wires came off the capsule. . . I was able to solder back on , and It carried on working without any further problems. . . But I have dropped sure mics several times and never had that problem. . . So I've docked a star for quality !
I've been a long time sm58 , then beta58 man , and to be honest I haven't tried a lot of other mics, other folks seem to think my vocals come over well , so I only fix the broken stuff !