Review (4/5): They're convenient, but could work a little better
I bought these for my sister, and she says they are much more convenient than whatever she does with a regular cloth and pouring solution on it from some bottle thing. (I have a vast knowledge of makeup products) But she said they don't work nearly as well, since she has to work a little harder to get her eyeliner off. She told me she would recommend them to her friends for road trips or when they're out places, but for just at-home use they aren't the best.
She said she'd give them 4 stars for the convenience, and they are decently effective, so that's what I did. Hope this was helpful in some way ;)