An indication of the 'modernness' of Uninsky's playing comes from a comment by Dinu Lipatti in a review he wrote in 1937 for Libertatea in which he says "How is it possible that Emil Sauer must play in the small Salle Érard, despite his glorious past, when a Brailowsky or Uninsky can pack the Salle Pleyel?"
What sets Uninsky apart as a modern player is reflected in a comment by Dinu Lipatti in 1937 for Libertatea, where he notes "It's surprising that Emil Sauer has to play at the smaller Salle Érard, given his impressive past, when someone like Brailowsky or Uninsky can command the larger Salle Pleyel."