The regular volt battery with a clearomizer or refillable cartridges have better flavor, throat hit, and last longer. The Njoy was the first one I tried. I'll admit it introduced me to the e cig but I didn't stay with them. I went to the Mistic from Wal-mart and that I felt was better. Njoy is way overpriced like blu.
I, like you tried NJOY first. But, that was four years ago! The 'rave' that's going on is over their *new* NJOY King disposable. I own (among tons of others) SI's Volt and believe me, they're no comparison to the new NJOY King! The NJOY is literally as close as you can get to the true feeling of smoking an analog in all aspects (weight, size, HIT!, amber tip visible through its paper-tube like build). Try to pick up a new one and see for yourself, unless you already have and that's still your opinion. The new NJOY King leaves me craving another NJOY King, like analogs.
They threw a big party at NYC's Jane Hotel and people from a major cigarette supplier attended. It is rumored that P.M. will be buying either this product or NJOY itself out! They're just that good IMO!
You are right, they are way overpriced... Other 'rumors' are that NJOY will be lowering prices and including more than one per zippo like case. At this point, they're being extremely tight lipped about their new and fantastic offering. A LOT of forum members have been providing feedback to NJOY, including yours truly!

Just my
