"In addition, the Perzina verticals have several interesting features rarely found in other pianos, including a "floating" soundboard that is unattached to the back at certain points for freer vibration, and a reverse, or concave, soundboard crown.(There may be something to this, as the Perzina verticals are the best sounding verticals from China, the bass being particularly notable.)"

"Pianos made in China continue to improve and make inroads into the North American market. By some estimates, more than one-quarter of all pianos sold in the U.S. in 2003 were made in China. As recently as 2001, most pianos from China, though technically acceptable, were not musically desirable. Over the past couple of years, however, the musical qualities have taken a big leap forward. Though nearly all makes have improved, and most are acceptable, the best vertical pianos are those from the Yantai-Perzina factory, sold here under the Carl Ebel. Perzina, and Gerh. Steinberg labels;…”

In the “world piano brand ratings” annually of American THE PIANO BOOK from 1987 to 2006, pianos in Group 1 and 2 were mostly made in Europe and those in Group 3 were from Japan. Pianos made in China have never been in the first three grades until 2007, “some of these actually have the performance characteristics of high-grade instruments and, like Perzina verticals in Group 3A, may eventually migrate upward on this chart as their track record and reputation warrant.” (Group 3A is the highest quality in Group 3)

 "Group 3A consists of most pianos made by the Japanese-based companies Yamaha and Kawai and the highest-level Korean-made pianos of Young Chang and Samick. The latter are built to advanced designs, and when expertly prepared by a technician, can play as well as some pianos in higher categories. However, their quality more variable and most dealers do only enough make-ready to make them acceptable. Also in this category are Perzina verticals, the only pianos made in China thus far to make it out of Group 4.They have excellent tone and action, and have been out in the field without problems long enough for me to feel comfortable recommending them."

“In addition, the Perzina verticals have several interesting features rarely found in other pianos, including a "floating" soundboard that is unattached to the back at certain points for freer vibration, and a reverse, or concave, soundboard crown.(There may be something to this, as the Perzina verticals are the best sounding verticals from China, the bass being particularly notable.)" Later in 2008 the company plans to introduce a premium vertical piano series featuring the German Renner action.”