This is just pointless fun. It's really like an anime version of Seinfeld. The opening theme will really get stuck in your head in no time flat. I see two flaws that really ruined my enjoyment:
1. No real plot. I like stuff that actually has a transition of events, not just random stuff happening for twenty minutes.
2. Halfway through the show, we're introduced to a whole bunch of characters who weren't there before. We're expected to get to know them without given any spotlights on them so you're sitting there confused because you didn't get as much time as you did with the original four characters that started things off.
My main warning to you folks is not to watch this if you know very little about Japanese culture. You really need to know basic stuff like how festivals are celebrated and why people in Japan behave like they do. If you don't, you won't be able to follow this series easily. But if you need a break from a high-energy action story or something to unwind with, this is actually a good way to kill time.

I just got something to add.

1. Skip episode one. You won't miss much. They spend half the episode talking about how they eat their food. IT'S STUPID!!!
2. Episode six has nudity.
3. One character is a doujinshi/fanfic writer (can't remember which) who has shojo-ai fantasies about two characters ending up together. I remember one scene when she thinks about them trying to massage each other's breasts to make them larger. Definitely watch out.