I recently heard the announcement of a remake for this anime, which made me go watch the original. The art isn't phenomenal, but it has such comfortable, cozy vibes.. Here's the description from AniList:

Genius bartender, Sasakura Ryuu makes the most incredible cocktails anyone has ever tasted. Seeking his "Glass of God", individuals from all different walks of life visit his bar. With both a compassionate ear and a godly drink, Ryuu helps people with their problems.