Basically, I wished it had more examples, though. BunPro is better as you can insert your own example sentences into it.
I never like book for learning vocabs because of no SRS. How do you suppose to remember all those words? You might be able to get it around by creating an Anki deck based on the book. However, I think it’s unnecessary work that you can do just by using iKnow.
Agreed. You can also use this to sync with your current WK level: iKnow sorted by WK level, which I think is pretty cool.