I use Crystal Ivory on my baitcasters and have had zero problems with it. I used it for leader (10lb)on a landed 18.5 pound steelhead, not to mention many other steelhead.
I can't speak for it on a spinning reel, as I mainly use a spinning reel for float fishing and use Tuf-Line on it.
Everyone has their favorite equipment. I would recommend making your own evalution, rather than taking a single opinion as gospel. You might be suprised what you may like that someone else may dislike.