i read the following difference from the same thg article...
To conclude, if you want only high-quality caps in your PSU and you also want to avoid the SF-550F14MG's problem with its power-good signal, then stick with EVGA's 550 G2, which uses only Japanese caps and, although it has a lower than 16ms hold-up time, its power-good signal is inline with the actual hold-up time.
er...so in conclusion it is good? sorry, abit chim for me... ><