this is interesting....I just did a search. some people love these and some say its just a microfiber towel, same as you'd buy to clean your car.I got the Original Makeup Eraser cloth a few months ago and am a total convert! I don’t wear a lot of makeup daily, but even when I do a full face, the cloth does actually take it all off with just warm water! Even mascara (though I haven’t tried with waterproof mascara). Some days I follow with Cerave SA cleanser using the exfoliating side. My oily skin has been very clear and soft since using it!
If they are really that special and do the job, you'd save quite a bit by not purchasing cleanser. but I have trouble removing mascara so bet I'd still have to use something extra for that