Started with the Blu before I found this forum! Terrible choice.
Moved to the Joye eGo, played with
batteries, 750, 900, 1000 basically the difference between Riva and the others, found 750 and 900 to be my favorite.
Moved to USB passthru for my computer time, moved to the Ali' fell in love with it.
I've had issues with the VV regulator for months now, no real fix in sight, just got it back a few days ago, not sure if my charger is screwy or if it's a problem with the Ali'.
Just ordered another charger, hopefully that will fix my issue. I've found that I like about 4.5 volts on a standard 510 atty, and I love bottom feeders just because it's a grab and go thing. Carry an extra set of bats in my case and I'm good for all day.