interesting.. even with a dynamic mic, like this Thomann SM58 copy (I got it as a backup for gigs) the audio quality into my multitrack is noticeably better with the behringer preamp, than just cranking the gain up on the multitrack. admittedly, i needed the preamp to phantom power the condenser, but nevertheless it is a good improvement, and more than worth the money i spent on it.
its not night and day, but there is more detail, and less noise. it may say more about the pres on the multitrack (a zoom mrs8) but the behringer does get decent enough reviews.
meanwhile i'm enjoying having a condenser again :) leaving headphones on, and listening to things in the far distance