The only reason that I'm giving this mic a 4.5 and not a 5.0 is that I wish the pad, & response switch wasn't inset. Now to the meat and potatoes. I bought this mic for acoustic guitar in my studio. Upon opening the box, I'll say that the build of this mic is solid. Doesn't feel lightweight and cheap.The sound is fantastic. I play a Breedlove so was looking for something that would fit well with it, and this mic does all that. Very nice flat response, not too bright. Last night I mic'd up a mandolin and did a comparison against my Shure Ksm44. Myself, and the mandolin player both agreed that the AT4021 sounded better. Or maybe I should say that it did a better job capturing the mandolin. I've also used this mic for recording tambourine, and shakers, and it works great. When I was shopping for a new mic, I almost bought the more expensive AT4051, I'm glad I didn't as you get your monies worth with this baby.