I love my RS4 Sport 3 flux (Brushless from box one) However a few things to consider that keep mine as mostly a shelf queen,
Small rocks are literally the devil, the drivetrain is sealed but the steering rack is easily jammed by a small rock resulting in the steering locking one way, (Quick turn over and a shake of the steering fixes it 9 times outta ten, but having to do it often can be tedious)
Also when i looked at using mine on anything but prepaired tarmac or a nice carpark ride height became an issue, (Can only just slide my smartphone under mine so probably 15mm of height max.
Also the 9mm offset wheels can be a bit of a pain to get if your after a cheerful set
Sadly i cannot comment on the TB02 but my older TL01 was great fun everywhere