Today I tried the Coluccio San Marzano DOP tomatoes that I bought in Little Italy while I was in New York over Thanksgiving. In the particular can I bought, the tomatoes were of large size--larger than most San Marzanos I have tried--with little green. I thought the fruit had a mild, pleasant flavor, with low acidity and with a hint of sweetness. I did not detect the "tinny" flavor that many imported tomatoes have.
I personally like a thick puree since I like to use it in the finished sauce, usually by reducing it over low heat and adding a variety of seasonings and herbs before recombining it with the crushed tomatoes themselves. I found the Coluccio puree to be a bit on the thin side. An example of a San Marzano DOP tomato with a thick puree that I especially like is the LaRegina DOP San Marzanos. Like everything else, cost is a consideration. The Coluccios were around $3.50 a can. Unless you can get a good price on the Coluccios, as by buying a case, I think that there are better values available elsewhere.