These mics sound great, they look really cool and if you are going to record loud sounds as drums, guitar amps, loud acoustics, orchestra, etc. they will work fine. In my case, I'm currently using them to record acoustic guitar picking, upright piano and other acoustic instruments. If you need to record very intimate performances, forget about these because the amount of noise they make will mess your recordings up, unless you are searching for this "hiss" effect.
Good microphones overall, they are just not made for quiet performances.