As far as it goes Swallowtail inn would not be one of my favourite anime. At first I thought that I would really like it because the plot sounded good but then I saw it. To be quite fair the animation and the artwork was pretty decent but certain scenes in the 2 episodes I felt did not fit in very well. The back plot, which involves Yuriko's husband dying and the business that she had to run was good but I did not feel that the current plot concerning the new man that she met was very well written. I think that it could havebeen done better like what happened in Rumbling Hearts (except in this one a guy's girlfriend falls into a coma and she dates another). I think that since Yuriko just met the man that she develops feelings for in this anime it would have been better for them to take their relationship slowly. I found that the way they grew to like each other was too sudden and it would have been better for them to go on a few dates and for the series to have more than 2 episodes.
Other than that it was a pretty decent anime. I would reccomend it to anyone who likes quick love stories, you might enjoy it because it has its moments.