Wooops, I really should not post on any kind of forum when I had only 12 hours of sleep in the last 120 hours. So the actual answer ist: no, they're sh*t. (But I also never use TR drones)
The TR-Combi is a good tool of area denial in missions with large DZ to avoid a AD Trooper up your ass... I used it more than once!
I have never used them either. But, they may have a good point: range band. TR bot is only worth past 40 cm. These rem are good for the 0-40 cm band while being baggage. But i would rather take some thorakites and put them into suppressive. Being REM and S4 is a big problem, and as I have access to very good area defenders, i don't see the point of taking a big REM for that. In quadrant control, i'd rather take an EVO who brings unique things (overclock mainly) or standard 8 pts probots if i just want some baggage to weight a bit more.
Totally dice gods AND acedonal, but I smoked a O-yorio out of cover in a single ARO this weekend using the PanO Mulbot combi. Clearly the Mulebot combi TR is OP, and needs to be removed from the game. ;) (N3 dice says my odds were around 1%. Off to buy a lotto ticket)