For what it's worth, I'm with Gary.

I have used a dozen or more handheld mics, and the super cardoids have worked well as far as expression and feedback suppression is concerned. However, when I have a lot of moving to do, I grab my Sennheiser wireless. There is no feedback and the voice quality is exceptional.

Like Gary said, you have to get used to it, but the fact that I never have to run to the mic is worth the supposed lack of expression. Maybe I'm not expressive, but I doubt it..

Bernie