My Pro4 has been solid for me. I upgraded about a year ago from an AM3+ FX-8350 build on another Asrock motherboard. That was back when Microcenter was selling the R5 1600 for $79 with $30 off a qualifying motherboard.
Impressed that an 8350 lasted you that long at a reasonable performance level. An R5 1600 for $79 is definitely an awesome deal; mine still crushes pretty much any work I throw at it.
