I don't do a lot of vocals in my untreated room but I would like to upgrade from my SM58 that I use for sketches. I am currently considering two options: Shure SM-7 or one of the higher end Vocal (Performance) Mics such as the Neumann KMS series. Have you got any experiences you can share as in 'use this model + Izotope and you did all you could considering your bad room'

Please let me know your thoughts.
Cheers,
Matt