The CPU impressed me. It was running around 60o while doing heavy rendering in blender, and has had no problems with physics in any games. The Corsair H100i is a nice closed-loop cooler that comes with great pre-applied thermal paste so I never ended up using the Arctic Silver. If you plug it into USB on the motherboard with the included cable you are able to control it and it's connected fans using Corsair Link software. The lights on it are custom colored through Link and the fans can be adjusted automatically based on the temperatures of any hardware.
I went a little overboard on buying a GPU but I'm glad i went with the EVGA 780ti Classified. It was able to score 11184 on 3dMark's Fire Strike while keeping under 80o . When I ran that test I did not have the backplate on but I am told it may reduce temps a little. I can run any games on ultra without any lagging. The 144hz monitor I got with it is very nice too. It's a TN panel so it doesn't have the colors of an IPS panel, but the great speed and smooth quality of it while gaming has made it a great purchase to me. While running Lightboost I had zero motion blur.
The Fractal Design Midi R2 is a very impressive case. I moved the top mounted fan to the front to make room for the CLC, and I have a few more fans on the way. I wasn't using the top HDD cage so I decided to remove it, but behind it was some cable clutter I was too lazy to sort out. My solution was to remove the HDD sleds from the cage and turn it to cover the cables without blocking airflow. The WD 1TB HDD is a nice drive. It doesn't have the speed of the SSD but I only use it for storage. The SSD is blazing fast and is great as an OS drive, my boot time is around 5 seconds with Windows 8.1. The optical drive is nothing too special, all I used it for was installing the OS and drivers.
I went cheap on peripherals. The Abyssus Mirror fits well in my hand and the dpi switches on the bottom are nice, but the shiny plastic is very prone to fingerprints and smudges. The Sidewinder X4 keyboard has a nice feel to it, but the plastic the keys are made of feels cheap. The wide variety of macros is a big plus though, i use them all the time for navigating and gaming.
So far I like this motherboard. It operates well and I'm told it's great for overclocking, but I haven't done any of that yet. The variety of colors on the board was annoying at first, but now I don't really care how it looks as long as it runs well.
The ram is quite fast, and the design fits the look of my rig. It doesn't get very hot with the heat spreaders on which is good, but I haven't stressed it too much. I'm planning to add another 2x4GB soon.
The modular PSU design is nice, but the cables are pretty cheap. They are stiff so I'm going to custom sleeve them, and the connectors are a little rough to get in, especially the 24pin. The wattage is easily enough to handle the rest of the system.
Overall the parts all work together very well. I have no problems running anything right now, and hopefully it will handle games on ultra for another 2-3 years. I'm glad I went with these parts.