In my opinion Rummo is more commercial than Cocco, and despite being a very valid product, doesn't have the same quality.

Basically Cocco bought the old bronze machinery from De Cecco, when it still was a relatively small family business and not the huge company that it is today, and keeps using them... with an overhead that justifies the premium (if you like good pasta).

Anyhow, as I said, I mostly cook with De Cecco because it's easy to find in the supermarket, sometimes I go to an Italian shop that's close to where I live, and buy some artisanal pasta, and on rare occasions on holidays, I make home-made pasta (tagliatelle or pasta alla chitarra, and ragù as a sauce... it's really not that difficult, and it tastes much better than anything you can buy)