Hater here. Nah, just kidding!
I have a bottle of ESSRI. It is used as my go to ink for testing vintage pens (when I am unfortunate enough to have paid good money for one that is). I've had no problems with it. Ever. Not even as a dry writing ink. It seems tailor-made for vintage pens <talking about early 20th century pens, mostly flexible nibs and eyedroppers.
So, the review is a bit perplexing.