My band is looking for a good quality microphone. The owner of the rehearsal studio said that if we got a good quality mic it will solve alot of the feedback issues we are having with his PA. We are a five piece band and cant get enough vol. on the vocals without going into feedback territory. He highly recommends the Shure SM58, but then some reviews on Harmony Central dont think highly of it. What's been your experience with it? Is there a better mic within a similar price range available? thanks!