"I ran into some issues with the online version. Since the online version has been around for a while, I expected it to be more polished. I used IE 7 (rather than my browser of choice) to minimize incompatibilities.
Somehow I entered something relative to RSUs that TurboTax did not like, generating lots of errors at the end. Since fixing the errors turned out to be an ordeal or just impossible to accomplish, I decided to revisit the topic. At that point I found some link online that prompted me to return to the screen I saw prior to hitting the "Help Me" button, the one that contains the Cost Basis. There was no obvious way to do that, so I decided to start over. The problem was that there was no apparent way to start over! So I started deleting entries one by one. When I got to the end, the TurboTax website keeled over with some sort of unrecoverable error! I logged back in. Surprise, all the data I painstakingly deleted was back there. But the worst part: ALL THE DATA I HAD ALREADY ENTERED FOR MY DEDUCTIONS HAD BEEN LOST! Not only that, the program had marked all that section as already visited. I had to manually revisit all the sections. I don't know if I solved correctly my RSU problems, but I managed to find a way to get to the end with no errors. I decided not to file right away, but to wait until the next day and rereview. Amazingly, TurboTax inserted an error in data I had entered correctly. A few years back I had a different car so I have two cars listed for the VLF deduction. Of course the old car has 0 dollars, and the newer car has X dollars. TurboTax somehow decided to duplicate the X dollars and apply them to the old car! This incorrectly doubled my deduction and I had to fix this by hand. I was kind of shocked to see these kind of bugs in a supposedly mature product.
[Just in case anyone feels like dismissing my review: I am a Senior Principal SW Engineer and I have been developing software for 20+ years.]"