I felt the same way. On the initial BIOS I had some difficulty getting the RAM to run its XMP profile, some difficulty getting the OS installed, and there were also intermittent WHEA errors. Since then it's been 100% stable, not even an application crash, and the WHEA errors have stopped. Performance has been very good, not only in terms of gaming frame rates but the extra cores have made a big difference with how much I can have running without having to worry about it.
Just for reference I went with the following kit:
AMD Ryzen 7 3800X Eight Core 4.5GHz (Socket AM4) Processor - Retail
Team Group Dark Pro "8Pack Edition" 16GB (2x8GB) DDR4 PC4-25600C14 3200MHz Dual Channel Kit
Gigabyte X570 AORUS PRO (AMD AM4) DDR4 X570 Chipset ATX Motherboard
+ a cooler, and reused the PSU from my previous build.