I HAVE AN EXPENSIVE Mic PREAMP ALREADY BUT IVE HEARD GOOD THINGS ABOUT THIS PREAMP SO HAS ANYONE USED THIS BEFORE IF SO LET ME KNOW. I RECORD ALOT OF RAP ARTIST?

Since we're on the subject of front-end stuff, I'm curious to find out if this unit is worth taking a look at. This would be used as a mic preamp on a temporary basis unless it really matches up to some of the better products on the market. Or would it be better to hold out & save a few bucks and get that "really nice" pre everyone raves about?

Have anyone compared those units? Or even listened to it?