I'm trying my best to like TBC. A lot of the things it does are quick/clever but if the TBC developers want it to be all things to all users, they've still got a long way to go with the basic CAD functions. I'd suggest getting someone to show them just how easy AutoDesk/Civil3D is to use with regards to basic CAD linework. It's not a matter of preferring one over the other. It's just a matter of making things that should be dead easy, exactly that.