Overall, very good, and very easy to use. I gave it a 5-star rating, but there were some small glitches in the state version (MA) which caused me to waste some time figuring out how to enter some investment income without using overrides (which would have prevented e-filing).
Only a few instances where I had to amend a few forms that software directed me to during the Accuracy Review Phase. If you bring all your paperwork to the table that you would have when sitting in front of an Accountant, the software guides you quite well.