I was looking for a machine to replace my ailing laptop that would also allow me to work from home and play games I haven't had the hardware to play yet. I think I've succeed! Temps under load are around 70~ and 30 at idle. The installation was pretty easy, and there haven't been any major issues yet.
Case: Great case, everything was very nicely laid out. Can't stress how great it was. The dual chamber design is really nice, there were a lot of points for tying off zip ties, and you can fit so dang much in there. There are dust filters all over the place, and so much space for drives. Too much space.
PSU: Really nice item, came with a lot of cables, and is fully modualar. Also came with a tester to see if it was defective before you plugged things in. My only complaint is that all the SATA cables that came it had three inputs, but weren't long enough to actually reach all over the case. I had to use 2 SATA cables with only one thing plugged into each, which made cable management more tricky.
Motherboard: A bit tricky to lower into the case, and had a lot of standoff screws. The RAM slots are a bit oddly placed, but everything fit with the large CPU cooler. It's got a ton of little features too.
Cooler: Had about an inch of clearance between the top of the cooler and the case window. It was really thoughtfully packaged and and came with a bunch of installation accessories, as well as decent thermal paste. I had a bit of a panic trying to figure out where the cross bars went and why there were extra parts left over (consulting the manual helped). It's pretty quiet at load, rubber pieces keep anything from making too much noise.
CPU: Was really scared installing this, but it seems to have gone smoothly! Had a lot of drivers to install, but once I did everything else in the computer started making more sense.
GPU: I was worried about the size before I purchased it, but it really didn't end up being an issue. It does create a bit of a pocket of hot air inside the case though, but overall great. I thought the little dragon LED would be silly, but it's really fun. The MSI software gives you a lot of flexibility. It is a bit bulky though, but it fit really well in the Node 804, adding a second might be tricky though.
I had a lot of fun researching and building this build, feel free to ask questions if you're considering similar parts.