Blue Circle Audio PLC Thingee FX2 X0e Vs. Other

I am debating on getting this fairly new conditioner with the XOe low pass filter. Does any one have any thought‘s about how well it works on amps and is it much of a improvement over the orgional Fx2 version? Also in general how would you say it compares to other conditioners,$500 almost seems to reasonable for the claims. Thanks in advance for thoughts.

I am using a Pass 250.5 and a Gallo Sa sub amp,Galo Ref. 3.5 speakers,Cary Aes Djh pre. modded Denon 3930ci Cdp and a W4S Dac 2.