I didnt like this manga much either when I first read it in university, that was maybe 5-6 years ago.
Then I got married, have a kid, started working, reread this manga. Now I think this is one of the best manga ever
It's weird I know, but I think there are certain episodes where I identify so much with the bar clients that I feel as if it's I'm visiting Sasakura. If you dont have this connection it will probably feel like a really average manga.