STL or Qt containers?

Question

What are the pros and cons of using Qt containers (QMap, QVector, etc.) over their STL equivalent?

I can see one reason to prefer Qt:

Answer 1

My five cents: Qt containers are supposed to work similar on different platforms. While STL containers depend on STL implementation. You might get different performance results.

EDIT: I am not telling that STL is "slower" but I point to effects of various implementation details.
Please check this, and then maybe this.
And it is not a real problem of STL. Obviosly, if you have significant difference in performance, then there is problem in the code which uses STL.