It is tricky and a little bit nerve racking but it working and not problems so far. It built this so I have some a bit more powerful while I am traveling around for work. Most if the parts I got cheap of eBay like the MB (new!), the chip and the ssd. Everything else retail. What gave me the most trouble was installing the cooler. It almost blocked me from installing my last ram stick (6gb leftover ram). Other then that the cable management which gave me a bit of an issue but it was easy one I got a hang of it.
I love the wifi and bt built-in !