I'm an interior designer.  I do a lot of kitchen and bath design, cabinet design, tile design and layout, lighting plans, and i need to be able to do some perspective drawings showing furnishings, etc.   I imagine the Chief Architect Interior is what I need but am I going to be missing out on things that i could potentially use in the future if I skip the premier version?   I'm never going to do any roofline or site drawings.  What are most interior designers using?