I'm an architect so my workflow and requirement for parametric modelling features within my software of choice relates to that. I need windows/doors to embed into walls and be adjustable on the fly and readjust to suit. Flex Tools appears to do this. I'd like to be able to create parametrically adjustable multi-layered walls (and floors) and Profile Builder appears to do the walls part at least. I need hatching for construction docs and Skalp does that but I need them all to work together.
I'd also like to able to parametrically tag windows, doors etc and generate linked schedules from these tags but have no idea if this is even possible in SU or LO......If SU had just 10% of the useful elements of Revit but retained it's user friendliness and organic nature it'd be all things to all architectural types......But we're still waiting Trimble.