My first build! I actually did this in February after getting some gift cards for Christmas in 2017. I think the prices were all marked as purchased back 8 months, so this build would probably be around 700$ now?
Now, opinions since I've been using this as a daily workstation for half a year!
-CPU: The Ryzen has been impressive. I mostly use the PC for daily school/classes (I'm a senior EE major), but some of the software I use includes CAD and ECAD, which can be somewhat demanding on assemblies. Overall, I think the value based on a cost-performance estimation is right on for a quad-core w/ hyperthreading CPU.
-Mobo: I do somewhat regret going with a cheaper motherboard and older chipset, but this board had tons of good reviews and was 30-ish dollars off (I think?), so I figured I could save some money here and still get some decent quality. The UEFI interface is simple enough and includes some nice features for tuning. I was easily able to get the RAM to 2933 and perform some other tuning.
-Memory: No problems here! These sticks were WAY less than their G. Skill or Corsair counter-parts at the time, so I went with Team Dark. Like I said, got it up to 2933 (haven't even bother to try higher) and it's been running fine in the Pro4.
-SSD: This is my biggest regret of this build. This M.2 module ran SUPER hot, so I got a heat-sync w/ thermal pad (another 12$). It was still hot, so I installed another case fan (another 8$)...for as much as I've spent I could've waited a month and got an SSD twice or four times the size. With all my schoolwork, applications, and OS related stuff I only have ~30% left. And yesssss, I use the HDD for a ton of stuff like media, games, music, etc.
-HDD: It's an old-school storage device. No complaints. And I know I could have gotten a similar model for a little less, but had to use a Wal-mart gift card and this was about all they had.
-GPU: I play games occasionally but haven't played any new AAA titles...mostly Skyrim, Witcher 3, and Far Cry 4/Primal. I haven't noticed any ghosting or screen-tearing, but I'm not playing FPS games. I think it's a little of a bottleneck compared to the CPU, but I picked this up when the prices of GPUs were absolutely stupid. I might look at upgrading to a 1070 at the end of the year.
-Case: This is probably my favorite purchase of the build! I absolutely love this case. Plenty of room for extra 2.5" and 3.5" devices, fans, and radiators (if I ever decide to OC the CPU...o_O). Cable management was a breeze, but I also purchased the Thermaltake Black/white extensions to stick to a theme. It has RGB, but I'm not big on all the lights and the Pro4 doesn't have RGB headers. I think I can still control the LEDs manually... The tempered glass window looks great and has a slight smoke tint. The case also has enough USB 3.0 jacks on the front for my uses.
-PSU: No problems thus far. It's semi-modular, which may be a turn-off to many of you cable management freaks, but with the extensions, you can see my cable management still turned out pretty solid. JMO.
Overall, this build was fun and WAY easier than I expected. I think it took me about 2 hrs to go from opening boxes to installing Win10. I think that it turned out great, and I don't have any problems showing it off to friends (who are generally jealous). I ended up doing another build after this one, but I'll be making that post later.