It is clear that the production values here are not high. The animation is somewhat stiff and choppy. I didn't like the sound design, which combines plenty of awkward silence with some weird, overly-loud effects. The extent to which the voiceovers don't match the characters' mouths is truly egregious.
As for the story, though, I don't dislike it. Unlike later works associated with Ryuuhou, Shiawasette Naani isn't overtly sectarian propaganda, but comes across as more of a general-purpose parable. I think its message is basically a good one: that remaining cheerful in spite of minor setbacks helps to make life more bearable for everyone around oneself. A simple, bite-sized moral that seems about right for a 15-minute OVA.
By far the most enjoyable part of this, for me, was simply the opportunity to see the humble roots of a director and a studio which I know and love. Recommended only to the amateur anime historians out there.
