I love OB tampons, they are the only brand I buy!
However, I HATE the ones that have 'silktouch' and am always disappointed when I buy them by accident (the boxes look so alike). Just a warning to others. The silktouch OB are more slippery and do not stay in as long. I feel as though they adsorb 1/2 of what they should. Stick with the regular cotton ones without silktouch.
I am also hoping Ob comes out with a more organic line soon. They are so good for the environment I would love if they also used organic non-bleached fibers too.