Good: I like the different study modes.
Bad: I don't like that I can't see which specific words I've mastered. There used to be a color changing light next to them but I don't see it now.
Flash cards are good because of repetition but when I see the word back to back on different study modes it doesn't help. Once I hear it on listening mode the next four flashcards are useless because I already know the word in short term memory but tomorrow I may not remember it again.
A wish: I wish I could click on a word when editing a deck and make joint another deck. Once I'm down to one hard word that I'm having difficulty learning I want to move it to a deck of hard words.