This humanizer actually surprised me
I tested a lot of them recently and most change the whole point of the text or make it sound unnatural.
RewriteIQ was one of the few that actually understood what I was trying to say and rephrased it properly. Detector scores are not always perfect on the first try, but after rehumanizing or making a few small edits, the scores were lowered.
The credit system confused me in the beginning, but after using it for a while it made more sense.