+1 for the vivi nova. I got mine yesterday and so far I'm loving it. But as to the question asked, I can add this. I used the ce5 for a bit and liked it ( though not as much as the nova). However, my supplier (myfreedomsmokes.com) sent out an email saying they were foregoing the ce5 in favor of the smoktech redux. Their stated reasoning was that according to customer feedback it "looks and functions just like the ce5, but seems to be slightly more durable". Also my wife's ce5 had the clear tank part separate from the metal base. Glue failure I'm guessing. Maybe that's what the email referred to. Hope this helps!