Tips for managing reviews after level 25

I know I am in a way lower level, but have you tried [Userscript]: WaniKani Ultimate Timeline
I am working and studying full-time, so I use this to make shure I don’t get 400 reviews one day and 50 the next. This combined whit using 15 days in average each level makes the workflow manageable for me. (But as I said, I am still not near level 30)