They are great... I always have some on hand to be honest.... They were one of the pioneers in the e-cig world... they were old hat when I started.
They have 3-4 juice lines... and their lines have altered over the years... they have always had 1-2 chinese juice lines... and always a premium juice line or TWO.
Their premium juice line used to be decadent vapors... which in my opinion, is some of the best juice / flavors anywhere.
Not sure who they use for their premium line now, but it's of similar quality.
As far as price goes, I think they are completely in line with other lab quality juices such as Halo, GEJ Lab, nHaler Octane... around $20 for 30mls... in fact, they can be significantly less if you buy during a sale. They have frequent and random sales events... and the best deal is usually on a 3 pack of 30mls juice... usually around $45 shipped... and that's on the premium blends... the other blends are less.