I've tried chief for several weeks and and frustrated with the lack of cad tools, lack of remodel features (existing, demo, new walls), and the hard to use "user interface". Softplan looks like a better interface and has the features I'm looking for overall. Anyone else have the same problems?
FWIW, Chief draws walls from the top of the wall so if you want a truly usable, snapable grid, you have to use a 3D object for your grid lines (molding polylines in the attached example) and place them at the ceiling height of the floor you're drawing on. I personally never draw walls in 3D though and I'm not sure I ever will. If you want the clients to see the action in 3D you can always just tile your views.