This review provides a fairly detailed look at the unit. Don't know if Kenwood's made any changes since the review was written. You'll see that he frequently compares performance factors to the Yaesu VX-5R. As you may know, Yaseu has since come out with the VX-6R.

If you navigate back to his main page, you'll find link to his review on another TH-F6A competitor – the Icom IC-T90A.

Edit to add another link: Review here of the TH-F6A in ARRL's QST Magazine.