So I've had my Ego-T for about a month and it's great!  I like the throat hit, battery life and basically everything about the unit.  Very well engineered IMHO.  The ONE drawback I found was the limited 1ml tank cartridges.  I just upgraded to a new tank system and it is FANTASTIC!  If you find yourself with the same dilemma I HIGHLY recommend this tank.  It was about $22 from vaporescence in Dallas (those guys are great) and definitely worth every penny.