I can't answer this question for you, because I can't predict what is important for you, or what your situation is:
- Are you on a large or small development team, or are you a one-man shop?
- Would it be useful to have a system in place where you could have your application automatically send in trouble reports that create incidents in your bug tracking software?
- Is being able to predict a release schedule important, or is this just something for a side project you're doing in your spare time?
- Is integration with source control important?
In reality, you're the only one who can answer what features are required for you.
