I have tried 4 other vendors and their quality doesn't even come close. Definitely worth the extra money to buy Opi's. And no, I am not a vendor. I am using a throwaway so family members won't recognize my posts on this.
Shipping is fast as well. I once ordered from another vendor, then 3 days later from Opi, and Opi's arrived first (regular shipping).
that's exactly what a vendor would say