I decided to go ahead and sign up. I got my hands on the F2 and Like it but it takes up a lot of room (review coming soon). I have a car with an AUX port but my cellphone mount blocks the AUX port on my phone so use the F2 to connect.
I want to compare the two units and see if they still works better and if having the mic closer to the face will work better.
The rest of my review/testing plan is listed on the survey page.