The pluses: fabulously soft, the very best thing if you ever have the occasion to knit a chemo cap (I hope you don't, of course!). Also the stitches come out incredibly even, like a machine made it.
But the minus-- yes, it does split. But if you watch what you're doing and are a knitter who tends to be a little on the looser side, then it is fine. I like your idea of trying something small and seeing what happens!