Want a quick user report?
I have both the eGo (big atomizer) and the eGo-T. Both have been in use for about a week. So far, I am loving the eGo-T. Very clean taste, easy to refill, no difference in taste depending on the amount of liquid, no liquid in my mouth. You get condensation in the mouth piece/ depot after a while, which I don't mind. I currently have the blue/ clear depots, so can easily check when to refill. No more guessing!
But. Mid-term use by others seems to indicate that the liquid supply (a tiny tube that goes into the depot) is susceptible to clogging. Some had success with vodka, dry-burn or use o a fine needle, others haven't. When the atomizer fails, it gets a burnt taste. Most atomizers have failed after app. 20-30ml of liquid - I am not there yet.
I will do a vodka bath tonight, see if I can do some preemptive needle thing, and hope that the atomizer will hold up for a while.
I currently have 6 months of guarantee on those, so we are still in some sort of field experiment. When the prices for the atomizers drop (probably in February), I will see what those cost in combination with some sort of guarantee; wouldn't buy them TAWA, too expensive for those. But right now, I am willing to invest more in new atomizers and avoid the troubleshooting on my regular eGo.
On a bright note, the batteries are interchangeable. And do still use the eGo... but would like to keep the eGo-T as my main system. Unless the atomizers break every week, then the costs will be prohibitive.