My problem with Anki was years ago and was how hard it was to programmatically create/modify decks. The database was a pain and not documented anywhere I could find. Took some work and just digging through it the hard way. I just wanted to take a deck and lookup one bit in a dictionary and add a new field for that looked up bit to a card all automagically. Not an easy thing to do. Unless you want to learn the GUI bits, and maybe not even then. It was easy enough to create a new deck, but hard to bulk add new information to an existing deck that you've been studying.
