I've used Turbo Tax for almost 10 years. I find it generally easy though in combination with the tax codes, there are always some questions I have to get more information on before answering. Some parts of the program are more intuitive than others. Overall, I feel I can trust Turbo Tax to prepare my return correctly.
Very easy. I like that you can file your state returns using a different filing status than on your federal return. That was the deciding factor for me.