All my last three CPA, EAs missed a lot of credit for me. A friend referred me o him so I went to get a quote. He looked at my three years back tax and found a lot of mistakes. So he amend all my 3 years back tax, more than $5,000 total. He is professional, experience and knowledgeable. He cared about my tax. For all those preparers who missed all those refunds for me, I was overpaid all of them.