Very very happy with these microphones. Had lots of (vintage) MK84's before. Sold them years ago to be able to buy other stuff. Always regretted it. Although I found them rather harsh (even the vintage ones...) I had nice results when recording acoustic guitars. (Often tempered some hight frequencies). All is a matter of taste of course. Personally I do not like the aggressive high freq's, which you hear so often in modern music. Bought the Beyerdynamic MC 930 's after reading lot's of reviews. Really really like them. More natural, less high and furthermore less expensive. If I had the choice between the MK84's and the MC-930, I would without a doubt buy the MC-930. Also bought the M201TG, which I also love very much. BD make nice microphones!
PRO: superb built quality, good value for money, great sound!
CONS: none so ever.