It's so new... few people are on it, lots of pharmacies don't even carry it yet. But I'm on it... supposedly decreased appetite can be a side effect... I haven't had an increased appetite I know. I've been on it for a week so far, and it's working well aside from the initial boost w/ impulsivity I've mentioned elsewhere, it's certainly better than what I was on, with much fewer, if any, side effects. I'd say my appetite/weight has gone down a little, I'm not fatigued throughout the day, and my tremors are highly decreased.
But everyone responds differently. I hope it's gone better for you since you wrote this post.