[goleary]

I use https://floorplanner.com for similar purposes (I pay $5/month). It is great at getting the floorplan nailed, but leaves a bit to be desired when trying to fill the space with accurate furniture, patterns etc. You can have multiple variations floor plans per level.

My gf uses https://foyr.com once we have the floor plan nailed to get an idea about what colors, textures & furniture to use in a space. It supports higher def renderings. It's kind of expensive though iirc.

[rubidium]

Sweet home 3-D is free. Does everything that you’re paying for and will still be around in 10 years.

[mrits]

I used floorplanner for my last remodel. It was great. The contracting company was really impressed by what I gave them.

I'd say it will take a few hours to get used to it and after that you can probably do most of what you want to do.