Ive gone through several sketching apps for architecture and this is by far the best for three reasons.
1. Very easy to use
2. Custom stencils are amazing
3. Best export by a mile
Layers and other tools are great as well.
Two improvements would be it needs project folders and a compass. Other then that its perfect.
GSAPPer_00001 about Morpholio Trace - Sketch CAD, v3.5.20