I built my first set of speakers maybe 3 years ago using Aura mids & tweeters. They seem to be very well made, considering the price, and they are pleasing to listen to. I can tell that the tweeters probably have a fair amount of 2nd/3rd order harmonic distortion, but it really only wears on me if I am listening for over an hour at high volumes. Anyway, I really like them.
I'll let you know how they sound when I finish up the cabinets.