Super easy, I use it every year. This year I finished in under an hour, and I was taking my time, making coffee and having breakfast while doing my taxes.
The format changes throughout the years which makes it complicated to file from year to year. The program is only as smart as the information you put in so somethings the program doesn't ask the right question which can lead to hours of work to figure out what information it needs. In addition it isn't fun to be nickeled and dimed throughout the process but overall it provided a service with the intended results within an allowable amount of which i was willing to pay.