Have been using Turbo Tax for over 15 years. Has always given me great returns on my taxes. Since I am always a last minute person in doing my taxes, I have found that Turbo Tax is quick and easy.
What's great about it: Easy to use. Helps you find what you need to use.
What's not so great: Sometimes not explained well. But you can always go to help!
The software does it's job and the UI is easy enough to figure out. The issues with this software is more of a combined issue with Quicken and this software. Quicken Home and Business's tax prediction is very poor in its capability (It doesn't bother with state taxes for example) and TurboTax only tells you when it's time to file. This leaves the business owner in the dark as to what their actual tax liability will be in the next year, making planning taxes difficult for the self-employed. It's better then nothing, but it's not that useful.
What's great about it: Does the job of returns
What's not so great: Can't be used for tracking tax liability over the year
Pros: My job status changed this year (switched jobs, lost a job, got a raise or promotion)