The SM58 is a world wide standard, proven tried and true, will work everytime...I agree there are better...I have played with certain singers who sound better through a 57, I don't like them too directional...I do like them for micing my guitar amp for a large venue...I like a sennhieser mic for guitar micing in the studio. I actually take the sennheiser and mid cone it and then put a 57 at cone's edge and track it to two channels if I'm looking for a beefier rythym guitar track, makes for a nice full range that you can pan in the recording if you want, no worries on seperating sides and conflicting strums or something, they are the identical track recorded with 2 different and different positioned mics.The other mic I cherish is a Rhode NTK, at under $500 for a tube condenser for use in the studio it rivals the very expensive Neuman's that alot of studio's use, I can't justify $2500 for any mic on my budget, and the NTK is critically acclaimed and I for one love it, whoever the guy was that was a studio engineer I met at a conference, Jim somebody...ha...it really was Jim ?, but thanks , it's a great mic with a warm rich tube sound for recording... I also have a few audio technica's Jim...a couple that are designed just like the SM58, can't recall the model # but I keep them set up for when we rehearse...and another inexpensive condenser mic ATK something that I run through a Focusrite tube preamp in the studio for micing acoustic guitar...good discussion here...thanks...Moker