Seems like a bargain with current PSU prices & stock availability, plus the benefit of being a true local store with full warranty. They tend to post pretty quickly in my experience as well. Also available at PCCG if that's your fancy.
SFX PSUs are pretty hot property at the moment. I was looking for something ~600W but they are still too pricey, so I settled on this little badboy for my pending Mini-ITX build (in a CM NR200 - which actually can fit an ATX PSU, but probably not with a 240mm radiator as well).
I can get by with 450W for my AMD 2300X, RX570, Corsair H105 cooler and other peripherals & fans. Should even have wiggle wattage for overclocking.
you would be mad to run an ATX PSU in an NR200. limits significantly what you can do with the case.
I recently rebuilt a 6700K system with a Zotac PGF 1070 (big boi card) into an NR200P, with an SF450 - works well. Good price at $109 for a decent quality 80+ Gold SFX PSU.