Many different opinions on air vs. AIO liquid cooling. My take on it? If you don't have a window side panel on your case to show of the glory inside, then go for an air cooler. If you do have a windowed case, the liquid coolers just look cleaner. Just my opinion.
The liquid coolers are extremely easy to install. In fact, it's only slightly harder than installing an air cooler. The only difference between installing an air cooler and an AIO liquid cooler is, there is typically a SATA power connection required (although not always), and then there is mounting the radiator to the case. Easy. I wouldn't worry about that. Actually, take a look at the user manual link below and read the installation instructions for an idea of what you're...