while we will never have a full insight as to the quality of giovanni's work, as much of his work is thought to be unattributed, we do have the few pieces which bear his name to make an educated guess as to his skill and attention to quality and detail. one auctioneer describes his work as "rather rough... the purfling is careless, the wood not particularly handsome", while another: "very careful workmanship. he applied a fat yellow-brown or red varnish". from these two auctioneer descriptions, it appears that his work varies in quality, although it may be based on the year or on the city where he crafted the violins. another, likely german, auctioneer described his work as clearly showing "the decline of art in cremona. his violins are made raw, made the deposit dissolute, the wood unattractive, the yellow paint inconspicuous." while this may be a bit harsher for criticism, it does make some good points that the other auctioneers failed to address about giovanni's attributed violins. they are made of, like most violins produced in cremona, poor quality lumber as that was all which was available.