After experimenting with the wall tool, I finally achieved a fairly decent curved wall by linking a number of smaller manipulated panels together. Once an object is placed it cannot be altered, short of deleting and starting again. Sometimes fighting with the program to prove who is master becomes exhausting. In which case, there are a fairly extensive furniture and textures libraries to peruse. Interestingly enough, the creators of this program realized that a little character goes a long way.
Furniture is the most easily manipulated object.
You can rotate, shift, and resize without difficulty. The only shortcoming is that all objects are in plan form, including doors and windows. Surface materials are viewed in small square samples, and the selection is limited. Two aspects of the program were completely lacking. The first is the quality of lighting available.