For Qora? Probably not, as there is not enough liquidity/buyers/sellers yet and the Qora asset was added 3 days ago and Qora wallet has/had some syncing issues I heard. Overall, it's just a new market place for Qora, just like for NEM or any other coin that would set up its gateway there. I wouldn't expect prices to be any better. But when Poloniex went down for 1.5 hours yesterday due to DDoS, NXT AE was the only place Qora could be traded on (but it's not like there was a lot of Qora trading going on at that time haha), so the NXT AE is kind of backup exchange right now, because it can't go down, well, someone could try to take down, but it's not a website they can DDoS