Got impatient and installed it tonight. Didn’t stress-test it yet, but it survived the UPS self-test. Very happy! Will stress-test it the next day or two.
My case ended up not having any space over the PSU. As Seasonic recommends on their website, I installed it upside down. I cranked up all my fans to stay at 100% all the time, here’s to hoping that’s good enough.
Seasonic included velcro ties and zip ties, very nice. PSU came in a thin black bag. The dedicated storage pouch for the cables is just a bag, for this price I would have expected a nice heavy pouch like came with my ancient Corsair. Not a big deal.
The included PSU tester is nice to have, but for this price and with a fanless PSU I wish the tester would have some LED indicator on it, and not require me to find a freaking Molex>fan adapter to connect a fan.
The previous PSU was a Thermaltake Toughpower Grand RGB 850W, part TPG-0850F-R, model TPG-850AH3FSGR. It was loud.