I'm a teacher geography and I do believe in the power of Moodle but...
The interface is sooo nerdy!
The discouragement is imense.
Making a quiz takes ages because you have to fill out diverse options.
For each question you have to repeate those options. You'll never know the implication of your choice unless the students do make some good suggestions about it.
But,... then U have make the whole quiz over again because you can't add question after "finishing a quiz.