Concerta has worked great for me. I was diagnosed with Adult ADD about a year ago and started on Stratera. That did nothing for me so I was moved to Concerta. It was like night and day. I can't even begin to explain how much better each day is.
The only downsides are:
It wears off in the evening, makes it difficult to converse with my wife.
When you miss a day, don't expect to get anything done. I feel like a lead weight the entire day, just want to sack out when I don't take the meds. Doctor asked me to skip weekends, but that didn't work out so well. Spent them sleeping