Not bad for a first build? I actually ran into some problems while building. My motherboard came DOA, Msi made the USB 3.0 header sideways so the cable was hard to plug in, I don't think I have all the connectors to the front panel set up properly because the power button doesn't light up properly. I kinda wish I had gotten an asus motherboard just because the board is black and blue mine is brown and blue and doesn't quite look as nice.
It's mostly my H100 fan's fault. The cables aren't quite long enough to reach the fan hub in the back of my Switch 810. I'd upload pictures, but I'm lazy Also, the stock fans are quite noisy and you should replace them, unless you are buying the H100i.
Some have pump issues, it can get loud sometimes, costs more than a decent heat sink and performs same or slightly worse, for me personally, the waterblock looks very bad. Also, as with any water cooling system, you always have that small possibility of leakage. If you want water cooling, you have to go custom loop, which is very expensive and can be hard for some people.