Thanks Vocr, I wouldn't have bought it if I didn't read your review on them. I need at least one positive review on something that expensive (to me) before I buy.
My pleasure! I always say nothing is perfect, but some things are good.

I'm glad you like as much as I do. I totally agree, the heating elements I don't really like to begin with the EB doesn't make me like any better. However, the heating elements I do like, it really makes them sing.
You really can't put on on a volt meter and expect steady accurate voltages due to the way the ego battery puts out it's power. From what I understand, it's a "pulsed" power, not a steady solid power.
Hey Mike! I am constantly bumping into you

. I really don't know the electronics theory behind it, but every time I voltmetered mine the voltage was rock steady. The "say it like I'm 5 years old" explanation, that I can understand, is that the Joye Ego battery is pulsed but the Ego booster uses a boost circuit to dynamically (depending on the dial setting) increase and stabilize the output.
Let's see, if you go to TW and buy a Tornado Booster it'll cost you $65.00 and a regular ol' Tornado kit runs $60.00 so for a PV that only goes up to 4.7V you've spent $125.00.
You can get a decent VV mod that has a full range of voltages and is about the same size for less than that.
Name one please? You do realize the EB is about 5cm in length right? Don't know what the Tornado is, but a Joy Ego 1000mah battery is less than $13 (
https://www.healthcabin.net/index.php?main_page=product_info&cPath=1072&products_id=7756). I think you're getting ripped off on whatever a Tornado is.
I have no problem with the group of people on here that hate expensive mods. I'm glad you guys are around and work to keep ODMs honest. I sometimes see some stuff priced and the margin has to be over 70%. I am someone who is lucky enough to be able to ignore price on something I want, but by the same token, I do not want to be gouged or anyone to feel like they are overpaying. That said, just because it is expensive doesn't mean it sucks for everyone. Some people pay many tens of $1000's for a watch. You can get a watch for $1. Just because its expensive doesn't make it a bad watch. You know what I mean?
I have no clue what the margin is on the EB. However, it is a travelers best friend. Again, name me 1 VV mod that is its size, weight, overall convenience and can go through any airport security in the world, past the dumbest security agent without a hassle? When you do that, you found a competitor for the EB and something I will buy immediately. Till then there is no other option, whatever the price is.