I have seen it, and it really depressed me since I saw a bit of myself in the main character. I hate those moments where you question if you should be living your life the way you are now.
The worst part was when he started playing FFXI, which is something I still do to this day, so the more I observed the more I saw myself. The good news it, NHK helped me notice the bad aspectsof my lifestyle and I've made an effort to improve on those since, it's a good series and it achieved the unlikely goal of inspiring me in the end.