I used a tax accountant for a few years, until he passed on. He absolutely had nothing nice to say about H&R Block. But since each office is locally owned maybe it's just our local office people he hated.
But one of his points is still valid. He studied tax law all year long, so how was the part time people H&R Block hire during tax season suppost to know and keep up with the changes? Plus he accused them of ripping off the Mexicans who couldn't read English so well, by erring on the overpayment side to decrease the odds of the IRS coming back on them (H&RB) for penalties.
I really liked the old guy. Retired Marine and he hated the IRS. Almost as much as he hated the local H&R Block. I knew I was getting every penny back I was entitled to. And once he even hinted I could maybe get more back. I declined. I had ex-wife and attorney problems, I sure didn't need the IRS on my ass too.