In spite of the fact that some of his annotations and guiding 'punctuation' marks do not quite suffice by today's standards, they are counted among important materials for studying medieval poetry and regarded as highly valuable.
注釈・加点自体は現在の観点からすれば物足りない部分もあるが、中世歌学を考えるうえでの重要な資料のひとつであり、その価値はやはり高い。