I am a huge fan of the Covert QRL - absolutely love the low kick point on the stick. The QREdge has the same low kick that we know and love. The stick is very similar in weight, but is slightly lighter. Warrior has upgraded to an Edge Taper, which helps keep the stick more stable on shots to improve accuracy and help get shots off faster.
I've been using it for a few weeks now, and so far it's an amazing stick. It keep the same features that made us fall in love with the QRL, but is definitely an upgrade worth getting.