I’m sure there are 1000 posts like this, but in case any skeptics are browsing the forums, I just wanted to make a post saying that this system really works.
I took a break… for one year… and upon returning, I still remembered 50% of the radicals, kanji and vocabulary in my (very large) review list. I wasn’t even aware that I had these memories - they just surfaced as soon as I saw the radical. kanji, or vocabulary word.
That’s all! WK is a good resource.