Maybe too simple...

The good: Very easy to use, good for simple stuff and short answers
The bad: You cannot print the cards (Print function is unavailable and Ctrl-P gives you the error ping), the Mac app does not have an equivalent for the iphone so you cannot transfer the cards to your iphone (that would have been nice!), the size of the cards are unchangeable and you cannot scroll to view more, you cannot change the font or the size of the font, the window for the card is not expandable (really??) so if you put more information than the card can show in the viewable area, you are out of luck, most Command shortcuts do not work (like print, copy, paste,…) and you have to go through the standard menu at the top (yes, even though this is 2012).

Papaw tree about Simple Flash Cards