I have the incredi-ball mitts and for the price they are very good. That being said they are like murmik described, thin, hard, and don't absord much shock. As a holder it wears on your shoulders after a while. Mine are still holding up well but they only get used by other people I train with since I have nicer ones. There are a scores of better mitts out there but probably not for $30. It is all up to your budget as to the platinums I cant say I have never used them.
Google Deleted my review blog!!! http://naksukaogearreviews.blogspot.com/!!!!!!!!DAMN YOU!!!!