It appears that the Mac version has a bug in it. Some Googling shows that many other people have run into it. In short, you can't print your return - somehow the print out is enlarged and only about two-thirds of the page prints. You have to delete all your printers, print to a PDF, re-install the printers, and then print out the PDF.
I have used H&R Block for personal income tax for more than 10 years. While there are frequently minor bugs they are usually not too bad. This year was the worst. Two major problems that H&R Block must have been aware of. 1) Several printing bugs (at least on a Mac): a) the program changes the printing scale. I had to call the company for a complicated fix. They knew about the problem and were great at walking me through it. b) when you e-file federal and then want to print forms, either state or federal, it places a water-mark "not for filing" in the upper right. Again support helped me solve this. It took about 20 minutes for them to figure it out and get back to me, but they were super-courteous and helpful. But these are two printing bugs. 2) the other major bug was that the program would frequently quit after I entered data during the interview. I had to save after every single data entry to prevent losing my work. This happened throughout the interview and while trying to e-file. I had to restart the program 4 times while e-filing because of this bug. This is terrible. Finally, it is annoying to purchase a state program and then be told I have to download one of the state forms and fill it in myself. Why buy a program if I have to fill in the forms myself? The state software ought to have the forms you need to file.
I had imported stock sales that had about 300 entries, had to review each transaction, the program would take about 20 seconds to process each time I hit enter to confirm the entry, complaints went unheard