nuances - Meaning of あくまで in あくまで私個人の意見です

What is the meaning of あくまで in the sentence あくまで私個人の意見です ?

ALC: back and edge, consistently GJiten: to the end; to the bitter end; to the last; stubbornly; persistently; to the utmost

What nuance is added, compared to saying just 私個人の意見です ?

• Is it more humble? (it's only my opinion)


• Does it express a more persistent opinion?