I attended the tax academy class and finished it with a score of 98. The passing score is 80. In the interview during the class, they told us even you failed the exam they would trying to offer you a position like front desk. But I didn't get a job at last. Less than 30% of the students who passed the exam actually got the job, not me, even though I think 98 is much better than 80. I was told if I want to work for them, I need to take the tax course again in the next year, and there is no guarantee for a job offer after you pass it.
So it's not surprise for me to find so many complaints of their customers, most reasons are related to errors and mistakes they made on client's tax file. They don't care whether the tax they did is right or wrong, they only care about your money, no matter it is paid to your tax or tax courses.