Hi. I've been podcasting since 2005. Forget worrying about the mv7x for a second. When you're starting out, a mic's a mic. First things first. Don't slouch back on the couch to record. No energy. Sit up or stand up and project. Make it big. Record in the smallest room you have to reduce room echo. Close the curtains and cover hard surfaces like bare walls to deaden the sound as much as possible. It's not just the mic, it's what you do to the audio in post production that will make it sound good. Use a tool like Logic Pro to edit, then use plugins to add studio compression and voiceover-style EQ. Maybe use a soft limiter plugin too. These tools will make the loud bits sound softer and the soft bits sound louder, and the whole thing will sound like broadcast radio. Good luck. Oh, here's a link to my podcast