I had a set of Doral tires.They were sold by Big O tires.They have since changed the name to Aspen.
They are made by Summoto(sp?)same company that makes Falken tires and others.
The Dorals gave me good service and I would not change them just because of the unfamilar name.
I recently put a set of the Aspen A/S touring on our Corolla they look the same as Doral made by Summoto, it's printed right on the tire. Mine came with a 50,000 warranty. I did some research on them and I think they are good tires at the price point, definitely better than the Bridgestone's that were on the car from the factory. Some name brand tires are junk and some no name tires are a good value. I would say don't get caught up in paying for a name.