First off I would like to remind you all that I payed full price for this out of my pocket, so I can only give you all my own honest opinion of this e-cig.
Now to the review:
I am a little disappointed by this E Power 14650 e-cig due to the fact that mine has a 8 sec. battery cut off feature, and for me this is a pain in the butt. I have also watched others reviews on the 14650 battery model and no one has ever stated this.
Has a steel case so it is a tad on the heavy side.
Has a non recessed battery button, so take care when putting in your pocket.
Cheap flimsy looking button cover.
The ability to get a replacement switch.
Heavy steal case, should be able to take a beating without getting dented up like an Aluminum case would.
Battery replacement is easy and more affordable to get.
I can not comment about the vapor production cause that will vary depending on what Atty, or Cartomizer you use.
Also as of right now, I can not comment on how long the 14650 1050mAh battery will last.
Bottom Line, Yes I would recommend this to anyone who wants to upgrade.
Edit #1: First Charge of first Battery lasted for 20 hours, Actual use time 12/09/11 11:15 to 12/10/11 03:30 = 16.25 hrs 12/10/11 10:30 to 12/10/11 14:15 = 3.75 hrs
Edit #2: First Charge of Second Battery #2 lasted for 12.5 hrs 12/10/11 14:15 to 12/11/11 02:45 = 12.5 hrs
First battery is marked as ICR14650 1050 mAh 3.7V
Second battery is marked Smoktech 14650 1050 mAh