"A diversified contrast to the pure classical horizons. [...] Grandiose listnening experience. [The musicians] were tirelessly dropping to each other the glowing balls of sound. [...] [They have] made it dazzle, the various facets of the guitar music". OVB Online, "Wenn die Finger brennen", November 2009

"An absolutely breathtaking playing technique, combined with virtuosity, finesse, elegance and an enchanting charisma turned the entire concert into a genuine delight. (...) The interpretation of classical guitar music, as well as the passionately played Spanish and Latin-American rhythms electified the audience. The artists build a perfect ensemble which was absolutely aware while playing perfectly together and added - with a charming smile - facileness to the high-class program." "Westfälische Nachrichten" (Germany), 2007

"This is absolutely wonderful! Magnificent job!" - said Brazilian pianist and composer Clarice Assad (daughter if the famous guitarist Sergio Assad) about the recording of her piece "Bluezilian" by the 4-tissimo Guitar Quartet.

"The performance which is definitively expressing my intension," - said spanish composer Lorenzo Palomo about the performance of his "Concerto de Cienfuegos" for four guitars and orchestra by the 4-tissimo Guitar Quartet.

"Your playing is wonderful, full of energy, nice colors!" - Bulgarian composer Atanas Ourkouzounov said about the recording of his "Three Folk Songs" by the 4-tissimo Guitar Quartet.

"Brilliant technique, combined with enormous expression and great pleasure while playing, marked out the performance of the four guitarists. The audience listened almost breathlessly to the brilliant music of the quartet." "Westfälische Nachrichten" (Germany), 2008