I really enjoyed both the 2006 series and the OVA series. The concept is interesting and the characters are simple and not overly complex. The romance is a bit later in the story, but they are there. My only complaints is that there wasn't as much romance as I thought there would be and I really wish there were another season for it or if the anime was a two cour series. "Cour" refers to the amount of episodes per season. One "cour" is normally twelve to thirteen episodes. Two cours would make it a twenty-four to twenty-six episode series.
This would allow the series to really flesh out the character's development, backstory, add more romance and go further in depth into the character's relationships, and add more to the story's plot. Overall a good anime that kept me interested all the way to the last episode. Definitely an anime to just relax and enjoy. I hope you all enjoy it as much as I do.