Anybody care to comment on the Graupner Polaron line of chargers?

Specifically the Ex1400, and s2002

https://www.graupner.com/Charger-POL...lack/S2018.BK/

https://www.graupnerusa.com/Polaron-...-TFT-Blue.html

I just picked up both for a good deal... ($350 for both - posted the s2002 is almost new) and wondering if theirs a reason they are so cheap... the ex1400 comes with a maxamps power supply too.


Did i get lucky or just buy some