I posted a thread about Vyvanse about 20 minutes ago. You may want to read that and see how I explained my experiences with it.
Overall I'd say it works pretty well. I've only been on it for about two weeks, maybe two and a half, and I can really see improvements in my concentration and mood. The only thing about it that isn't working for me is that it wears off incredibly quickly. It lasts about 10-12 hours because it's time released, but for me, it wears off in maybe 2 or 3 hours.
I'm still in the process of figuring out why it does this.
Best of luck to you in finding the right meds. =)