This is my first build. I've been using it for about 2 days now and nothing seems to be having issues. I ended up using the stock cooler instead of the aftermarket cooler I have listed because I'm not interested in Overclocking at this moment, and the Spirit had a weird mounting system that I couldn't figure out, even with the instructions.
The RAM has red LEDs in it and I didn't notice that when I bought the RAM, so that was a VERY pleasant surprise.
My CPU/GPU temps aren't done with any sort of proper benchmarking software, just what I've found during the games I've tested on. Framerates have been 60fps. maxed out on all games I've tested on, except ARK: Survival Evolved, which was on high settings, but that game is poorly optimized so whatever.
The Witcher 3: Wild Hunt (No Expansion), Just Cause 3, ARK: Survival Evolved (Only on ARK map), Fallout 4, Grand Theft Auto V (MSAA x 2, No TXAA, all other settings maxed out).
Edit: The Case is over 100 bucks because I included Newegg extra shipping in the cost. Edit: I won't be overclocking for right now, but I will when the CPU starts to seem inadequate for my use.
Awesome even at base clock speeds, game performance is superb. Although probably not worth an upgrade if you already have a 6600k, I've heard that Kaby lake isn't a huge jump.
This thing's gaming performance is superb. I have yet to pull out a game that it can't handle at Max settings at 1080p, well, except ARK: Survival evolved, but that games dumb when it comes to optimization so whatever.
The case looks great, has lots of space, LOTS of room for expansion, and came with 2 case fans, which I appreciate. Only 2 downsides, and one of them is personal. First off, this case is pretty big for a Mid-tower case in terms of height. I like that, but I can see some people finding that as an issue. Second, the front panel USB ports and audio ports are in pretty bad place, and if you plug stuff into them it looks REALLY dumb, although there's really nowhere else they could have put it so not really their fault.