FF ... I was one of the first fieldtesters of the ESP line of rods, prior to them being mfg'd by Norsemen Outdoors ... then again after they re-emerged on the market, from Norsemen Outdoors. I've posted many times about these rods, and given my opinion on them. I'm neither affiliated with nor beholding to the designer or manufacturer of the rods, so my opinion stems from personal use only ... and not a comparison against higher or lower end models of other brands.
What specifically did you want to know about these rods ? And it would be helpful to know which particular model you're interested in, and/or for what methods you intend to use the rod.
I have & use these three, and can only give a opinion on them :
E56ULS 5'6" Ultra Lite Rod
E66PLS 6'6" Power Lite Rod
E90PJP 9' Power Jig Rod
... CP