Old series (not in production now) and very old reviews (I am well aware of em). Current lineup is from a different OEM altogether, forgetting the name but its decent.
p.s I know the iamextreme owner (distributor of Xigmatek in Pakistan) and the RMA rate is very low, which one can confirm by going to the Pakgamers forums where a lot of people are using the Xigmatek PSU's.
taepo and worst, Suscon, the lowest grade commercially available..
Stress tests fail even after test 4.
mediocre testing results.. all models seem to struggle at voltage regulation..even the nippon caps dont save its grace..
further failures in following ATX specs.
hardOCP forums is a highly enthusiastic community.. their member discussions dont spark interest either
As for your PSU.. its good that your unit is working great... its just that overall xigmatec doesnot get the fame from any site and reviewer worldwide... HardOCP even gave it its first ever FAIL logo award..