Mine was the 350w you're looking at. It suffering from low and ever declining 5v rail until finally the system quit booting reliably at 4.18 and wouldn't run stable. Threw in my Enlight 235w and all was well again. Plug on the enermax around the 5v wires burnt. Trying it in a different system after cleaning up the plug acted like either one of the wires was broken or they hadn't bothered to strip the wires to attach the pins in the atx plug and one crimp had worked loose after being plugged in and removed only a couple times. Yes, I pull on the plug, not the wires. Would explain why it got so hot if there was minimal contact.
The warranty is meaningless since when I contacted Enermax for exchange they told me to go through the vendor who sold it to me. Which is great if you keep your receipts, if the vendor has an incredibly generous exchange policy months later and if the vendor is still in business.
Anyway, it was expensive, was loud (without making an impact in lowering overall system temp, but sure made it louder) and almost started a fire while making my computer unstable, but otherwise I guess it was ok.
Antecs seem to be very well liked, though they've had some bad batches too. Enermax might have fixed their design or assembly problem, whichever it was, on later models, but if you're getting that model I doubt it's been revised. Anyway their 'not our problem, have a nice day' service was enough to convince me to stay away. Enlights aren't fancy, but they're nicely priced over at newegg and I've yet to have a problem with one personally. That's the way I'd go if I needed a PS for a new build.
--Mc