I see this recommended all the time to people just getting into anime, but I've found that if someone doesn't get anime they really won't mesh with a hyperviolent and slow paced slice-of-life. I think it's the same thing as people that insist Akria (or buckaroo banzai) makes sense - once you're on your 30th rewatch, have the manga and read enough reviews about it, you lose the perspective of someone new discovering it for the first time.

Said as someone who dismissed anime for years because I figured it was all self indulgent wank like bebop (I love it now, but boy is it not a great intro to the genre)