Coming from previous console hacks...

It generally does require a halfway decent techie background to hack a console (or anything, like jailbreaking a phone). At the very least, being able to follow guides exactly to the letter or risk bricking a device.

Generally speaking, hacking a console will not let you play online.

You generally don't want to put a hacked console on the internet at all to keep it from being potentially flagged from the parent service like PSN

Now, this could all be different depending on the actual hack, but it's what's been true for previous ones.