Question Is this a good build?

Couple changes,

Never heard of that RAM Brand, Stick with Gskill, Corsair, Team Vulcan, Patriot or Kingston. I would also advise buying the fastest RAM you can and that your motherboard supports if its in your budget

Make sure your mothboards BIOS will actually support the Ryzen 3600

Get a better PSU, Something like a a SeaSOnic FOCUS Gold or EVGA G3.
 

DMAN999

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I would Strongly Advise you to wait a few months before buy a Ryzen 3000 series CPU.
The current BIOS versions that support the Ryzen 3000 series CPU's are Very Buggy.
Even the people who got the new Ryzen's to work have been posting about issues they have been experiencing.
I'm sure they will work out the BIOS issues before too long.