The structure of the survey is anything but complicated. :) It consists of two survey questions only:
One asks to prioritize features you've listed. (You can enable optional comments by every response option and entice users to justify their choices.)
The other one asks users why the feature they've chosen as a number one is so important to them.
If you phrase the last survey question right - showing that you care about their feedback - you'll be surprised by the quality of feedback and user insights the survey brings. They're bound to inspire your product’s future design.
To see what the feature prioritization survey looks like, check the survey template above. There are no strings attached!