I have a rapid d from accuchek roche, 6mm. I love them and will not go back to a plastic teflon.
Much easier to put in by self than with an inserter from my point of view. If doing when standing up, I will know immediately if I have a tinsy winsy bit of pain just on it's way in, then I take it out and move it somewhere else before pressing the sticky stuff down.
For the last 3 sets I put in from the end of the box though, for some reason I have had quite a bit of redness on the skin where the glue has been, just on my left leg. Never expereinced this before, so don't know whether it was sticky stuff, or me. Now moved to my lower right part of tum for a change, and a new box...so still won't know whether it was the last 3 in the box or my leg....
It wasn't painful, just that even a week on, the redness where the sticky white pad goes is still there. This is a first though, and I showed my DSN on my visit to her yesterday, so she is aware that something hasn't quite been perfect for just the last 3 sets.
I have been using them since November last year. You are advised to change them every 2 days.