I have been vaping since September 2010. I began with a Kr808 and loved it. However I was getting discouraged by the complete lack of consistancy of the batteries. I moved to a Riva and was satisfied but I would always come back and realize how much I loved my Kr808s. I have been watching this forum and the Bloog products and I was finally convinced by all the praise. I am a bit concerned about the 5 sec. cut-off since I had nightmares with short cut-offs in the past. I should be getting the order this week so we shall see. If this is not as good as you guys have made it out to be I will hold you all responsible!! 