Heft and balance are very nice specially for street performance.
About hardened edge I don't know because the blade is covered by a patina (film, covering - sorry, I don't know as it correctly in English). The steel is not the most bad, but also not the watered steel.
There is no sensation of the real fighting weapon. And there are too much photos of street jugglers and there are not enough certificates of using the pair weapon in army.