I find this site probably more harm than good; while it's good for raising some awareness of the challenges to sane people (the insane ones are the 'mark all the boxes' type), it is ridiculously narrow in its options. I mentioned one example; another is not being able to pick single-payer healthcare. It also doesn't include options like the right-wing desire to privatize social security that might cause great harm, showing the greatly increased costs to administering the program, even if it 'technically' cuts government spending.
The thing is, the issue really demands getting a bit more informed - most Americans are smothered in myths on this. But with 'multiple choice', it doesn't inform that much.