Depending on who you ask...They are condidered thir or fourth tier company, but it all depends on the coin. For me, the 2 coins I have purchased from NNC (2 1823/2 Bust Dimes Graded MS66 by NNC) crossed over to PCGS in MS60 and AU58. I paid XF money for the pair. The "crack out" game is not for faint of heart. I am sure I will be burned one of these days, but it is a risk I am willing to take. Learn to grade and make sure the seller of these 3rd tier
TPG's have an iron clad return policy.