I love the card. I almost always pick it up turn 1 or 2, and often another turn 3. I also like opening amb/amb and skipping cursers altogether. About the only time I ignore it is if masquerade is on the board, and then it's a toss-up. As to how I voted... Trasher. But I see it as both. I don't use Steward for much more than trashing, so it's Steward on crack to me, that doesn't force me to trash 2 when I don't want to. (Steward does have more value late. My failure to evaluate that is my own short coming)
But my decks usually enjoy having them there.
That said, I like to be sure I can power build my economy while having 1-3 dead cards in early hands.
I gain it about 72.2% of the time, and my win rate with is 1.42 (without is 1.2). Weighted against my record, which gives me a point value of 1.222 shows that I perform at a higher level than I usually do when I buy it, and about average when I don't.