Chemical guys clay eraser mitt?
 

Has anyone used one of these? Would like your thoughts on it.

These are very similar to the more popular Nanoskin Autoscrub Mitts. These synthetic clay bars are very beneficial in that they save a great deal of time compared to traditional clay, however they do tend to be more aggressive on your paint. These synthetic clays are much more prone to marring the paint, therefore I tend to only recommend using them if you plan on polishing the vehicle afterwards.

If you're just planning on doing some routine maintenance without polishing afterwards, I would recommend sticking to traditional fine grade clay bars.

-Zach

thank you sir