Among the main characteristics of the instruments built by Master Roberto Herrera it should be remarked that they are unique hand-made pieces, where no industrialized process has been used and to which he has devoted all his expertise and personal evolution, achieving with each piece the highest sound quality, beauty and distinction, making of them true instrumental jewels.

By virtue of the quality and personal meticulousness turned into each of his works, Master Herrera builds no more than twelve instruments per year, with a delivery term which ranges between thirty and forty days as from the moment the design, materials and other particular characteristics within the variety of concert and acoustic guitars are defined with the buyer.