Drinking Solo, whle incorporating the theme of drinking, is actually more about relationships and manages to create a story that's heartfelt.
The core of the show is the characters, both the teachers and the students, as we watch how they struggle through their lives. The heart is in the relationships and support they eventually end up providing each other. It takes a few episodes to get there but it's worth the wait.
The directing isn't anything spectacular; it allows for the story to grow and be told in simple ways but the majority of the strength lies in the acting (which is great all around) and the relationships. There are no noble idiots or pure evil characters, just everyday people trying to make it. It's refreshing watching a show about people you would know in real life.
A definite recommend for those that like simpler, more realistic shows carried by relationships more than anything else.