I've used the SM58 for years and my buddy suggested I try out Sennheiser. WOW. This mic has helped me improve my live set, and save my voice! This mic has a wider frequency responce than the sm58 (also $99.95) and a smoother eq curve so I sound more natural. the mic has a louder output than the sm58 so I don't need to push my voice as hard when I sing which allows me to sing longer or add harder songs. After about 3 years and 250+ shows both indoors and outdoors the mic gave out but it has a 10 year warranty! I called customer service sent them my mic and they sent me a free one!