I have been a Logitech fanboy for some time now, so i say go with Logitech. I do tend to use my mice pretty hard, and there have been occasions where the mouse has connectivity issues or dies entirely, while within the 3 year warranty. I email them, tell them my issue, and they send me out a new one no charge and not asking for the old one back. So as far as warranty goes, i would go with Logitech. I personally have never heard of Trust before so i can't comment on their quality. I have Logitech Performance MX now, which is use for photogrpahy and video production, and it has served me well.