Horses for courses. I haven't found the surface to be especially slippery. Perhaps I am part gecko? (That's the lizard , not the obnoxious Wall Street character - though it could be argued that Gordon Gecko was a bit of a lizard, name notwithstanding! )
Agree on the sharpness to the cap opening. It didn't bother me too much, which is why I failed to mention it in the review. Your solution to micromesh it sounds a good one (I have no idea what micromesh is but it sounds like an abrasive of some sort).
Maybe Pierre should consider a shallow chamfer to the cap opening on future models?