Actually Torque Tube will give more flight time because of reduced drag on the tail over the high drag of the belt. But, you will never notice this. Flybarless does have less rotating weight, and less things having to slice through the air, but that is what what makes them great. Well it is, but hear me out. We all fly in wind, and that is where a flybarless heli really shines. It will handle the wind much better than a heli that has a flybar.
From what i have heard, the Tarot is a great heli kit. As Lee would put it, "it's a great piece of kit". The servos I'm not so sure about, but for that price and everything included but Tx/Rx? You can't really go wrong even fi you have to order new digital servos. Oh yeah, all 4 servos that are included are digital and not analog. Much better.